I had rounded up a list of almost every search engine on the Web including top tier, second tier and some really out there search engines that allow you to submit your site for free as many of them have limited crawlers and may or may not ever find your site. Below is that list with the engine name and a direct link to the submission page:

Guaranteed Inclusion in 10 Search Engine Databases
and 10 Associated Web Directories!
Click Here – Rapid Inclusion in The Search Engine Network

Automated free search engine submission resources (includes some web directories and niche search engines):

350 Search Engine Submissions – Link
300 Search Engine and Web Directory Submissions – Link
170 Search Engine and Web Directory Submissions – Link
150 Search Engine Submissions – Link
140 Search Engine Submissions – Link
140 Search Engine and Web Directory Submissions – Link
130 Search Engine Submissions – Link
100 Search Engine and Web Directory Submissions – Link
50 Search Engine Submissions – Link
40 Search Engine and Web Directory Submissions – Link
21 Search Engines and Web Directory Submissions – Link
20 Search Engine Submissions (at bottom of page) – Link
12 Search Engine Submissions – Link

Individual free search engine submission links:

Burf – Submission Page
Exalead – Submission Page
guruji – Submission Page
Gigablast – Submission Page
Entireweb – Submission Page
FyberSearch – Submission Page
MixCat – Submission Page
OneSeek – Submission Page
WhatUseek – Submission Page
Scrub The Web – Submission Page
Search Site – Submission Page
Infotiger – Submission Page
SonicRun – Submission Page
Abacho – Submission Page
Acoon.com – Submission Page
Amfibi – Submission Page
homerweb – Submission Page
JGDO – Submission Page
Myahint – Submission Page
Walhello – Submission Page

Just Added 3/20/08!

Big Finder – Submission Page
Search Hippo (requires free registration) – Submission Page
Web Squash – Submission Page
W8 Search – Submission Page
Tower Search (requires registration) – Submission Page

Just Added 3/21/08 – Decided to add in some of the major players after many requests.

Baidu (in Chinese, but pretty easy to figure out) – Submission Page
Google – Submission Page
Yahoo – (reguires free registration) – Submission Page
Search-O-Rama – Submission Page
Igwanna – Submission Page
Cipinet – Submission Page

Just Added 3/25/08

Navisso – Submission Page
AxxaSearch – Submission Page
Dino Search (for kids sites only) – Submission Page
Boitho – Submission Page
Gheto Search – Submission Page
Intel Seek – Submission Page
Search Ramp – Site Submission
Ultimate Web Search – Site Submission

Just added 3/29/08

Find Once – Submission Page
Net Search – Submission Page
Susy Search – Submission Page

Just added additional Chinese search engines 4/2/08

iASK – Submission Page
ZhongSou.com – Submission Page

Just added 4/7/08

Famhoo (family friendly search) – Submission Page
ExactSeek (requires registration) – Submission Page
AcrossCan (Canadian sites only) – Submission Page
Megaglobe – Submission Page

Just added 4/14/08

AnooX – Submission Page

Just added 4/20/08

Alexa – Submission Page
Aesop – Submission Page
Shoula! Search – Submission Page
NetSearch – Submission Page

Just added 4/22/08

SearchIt – Submission Page

Just added 4/24/08

Biveroo – (in German) Submission Page
Official Search – Submission Page
Iconnic – Submission Page
Coolfishy – Submission Page
CorrectSearch (requires registration) – Submission Page

Just added 4/27/08

Enter UK (UK sites only) – Submission Page
seeknet – Submission Page

Just added 4/30/08

hakia (requires registration) – Submission Page
gogo – (Russian site) – Submission Page

Just added 5/4/08

43N39E – Submission Page

Just added 5/6/08

Antya (click on Submit URL) – Submission Page
VROOSH! (requires reciprocal link) – Submission Page

Just added 5/17/08

Claymont Search – Submission Page
Really Big Search (requires registration) – Submission Page
Search Engine XXX (not adult – requires registration) – Submission Page
shazee (requires registration) – Submission Page

Just added 5/30/08

amidalla – Submit Page
Wedoo.com (requires registration) – Submit Page
Stopdog – Submission Page
searchengine.com – Submission Page
eXactBot – Submission Page

Just added 6/13/08

Vmgo.com – Submission Page

Just added 6/16/08

Blue.lu – Submission Page

Just added 6/29/08

eBingBong – Submission Page

Just added 7/1/08

Jungle Spider (German Sites Only) – Submission Page
NIGMA.RU (Russian) – Submission Page

Just added 7/3/08

Swoogle – Submission Page
Knoole – Submission Page

Just added 7/6/08

XavierSeek – Submission Page

Just added 7/13/08

Lexxe – Submission Page

Just added 7/16/08

Xoole – Submission Page

Just added 7/20/08

eTracking (have to click on ‘Add URL’) – Submission Page

Just added 7/27/08

Zoohoo (Slovakia)- Submission Page

Just added 7/31/08

Foovey Search (requires registration) – Submission Page

Just added 8/6/08

Cavarzano (Italian) – Submission Page

Just added 8/8/08

Yandex (Russian) – Submission Page

Just added 8/12/08

Yoozila – Submission Page

Just added 9/15/08

(They are all part of the same network, so submitting to one WILL most likely provide data to all of them)

Web Portal Guide – Submission Page
Search Blast – Submission Page
The Seek Portal – Submission Page
Find That Website – Submission Page
Search It Guide – Submission Page
Find Similar Pages – Submission Page
Smart Search Guide – Submission Page
Klik Point – Submission Page
Hi Seek – Submission Page
Hot Site Search – Submission Page
More Web Search – Submission Page
Peak Search – Submission Page
Prime Search Results – Submission Page
Search Box – Submission Page
Ifernatix Solutions – Submission Page
The Original Search Engine – Submission Page
amele – Submission Page
AZ to ZA – Submission Page
Dr. Search – Submission Page
Help You Search – Submission Page
My Search Pilot – Submission Page
Therbo Search – Submission Page
Search Engine Tool – Submission Page
Your Reply – Submission Page
Mouse Click – Submission Page
Dash Launch – Submission Page
All Best Search – Submission Page
Better Internet Search – Submission Page
I Need Search – Submission Page
Local Search Engine – Submission Page
Ask the Search Guru – Submission Page
Searching Portal – Submission Page
Home Business Data Center – Submission Page
Go Find Here – Submission Page
Webmaster Tools – Submission Page
Sitefind – Submission Page
Gokoole – Submission Page
BruneiFM – Submission Page
AcuSearch – Submission Page
My Coco Land – Submission Page
All Can Seek – Submission Page
All U Search – Submission Page
All We Seek – Submission Page
And Search – Submission Page
AskSearch – Submission page
Beat Bop – Submission Page
Best City Search – Submission Page
Best Net Search – Submission Page
Big Splash – Submission Page
Computer Seek – Submission Page
DigiCrawl – Submission Page
Dot Search – Submission Page
Easy To Search – Submission Page
Final Search – Submission Page
Find This – Submission Page
Find Path – Submission Page
Find Your Search – Submission Page
FindZilla – Submission Page
Fitter Bitter – Submission Page
Search Network – Submission Page
Hip Flip – Submission Page
Hypno Search – Submission Page
Lightning Search – Submission Page
Meta Search Live – Submission Page
MicroSeek – Submission Page
Mota Crawler – Submission Page
One Search Nation – Submission Page
Querybit – Submission Page
Rapid Crawl – Submission Page
Refresh Line – Submission Page
Remote Search – Submission Page
Search Mind – Submission Page
Search Quick – Submission Page
Search Bell – Submission Page
Sly Seek – Submission Page
SparkleBerry – Submission Page
Surfer Search – Submission Page
Sweet Search – Submission Page
Teeter Totter – Submission Page
Text Billboards – Submission Page
Think Seek – Submission Page
Thunder Seek – Submission Page
World Seek – Submission Page
Wow Seek – Submission Page
Yuppy Search – Submission Page
Maddog’s Profiles – Submission Page
WaWiz – Submission Page
More Web Search – Submission Page
Find Portal – Submission Page
exopple – Submission Page

Just added 9/22

iDoFind.com – Submission Page

Just added 9/25

DeepIndex (in French, but indexes English pages also) – Submission Page
SpongeLink (currently only US and UK sites) – Submission Page

Just added 9/26

ubExact – Submission Page

Just added 10/9

TROPICA (in German, but appears to accept English sites) – Submission Page
www.search.ch (Swiss, but offers multiple languages) – Submission Page

Just added 10/10

XOLA (Vietnamese, but appears to accept English sites) – Submission Page

Just added 10/18

Thorseek (UK only sites – URL must end in suffix ‘.uk’) – Submission Page

Just added 10/21

WEBoFANT (Swiss only sites – URL must end in suffix ‘.il’ or ‘.ch’) – Submission Page
Oriango – Submission Page
Find Once – Submission Page

Just added 11/9/08

Harmony Search (text mostly in Japanese) – Submission Page
WASALive! – Submission Page
Anopt (in Russian) – Submission Page
Rambler (in Russian) – Submission Page

Just added 11/16/08

META (Ukranian – requires registration) – Submission Page

Just added 12/01/08

Seznam (Czech) – Submission Page
acoon.de (German) – Submission Page

Just added 12/8/08

fastbot (German) – Submission Page
Semager (German) – Submission Page
KOBALA (Dutch) – Submission Page

Just added 12/18/08

Super.Info – Submission Page
Zatka (only Indian sites) – Submission Page
Abraham Search – Submission Page

Just added 12/19/08

Insitor (German) – Submission Page
Pogodak! (Croatian) – Submission Page

Just added 12/26/08
4-everY-1 – Submission Page

Just added 1/6/09
Searchers (UK) – Submission Page

Just added 1/13/09
onkosh (in Arabic) – Submission Page

Just added 1/23/09
Redzee – Submission Page (please note that is says that submissions are to only update the image used in visual portion of the engine results, it will add new sites in this way also)

Just added 1/28/09
Majestic-12 – Submission Page

Just added 2/11/09
SearchWiz – Submission Page

Just added 3/4/09
Sagoon (requires registration) – Submission Page

Just added 4/5/09
ODCN.org (Chinese) – Submission Page
NetSprint (Polish) – Submission Page

Just added 4/19/09
Nepal Search (Nepal sites only) – Submission Page
YAAL.DE (German) – Submission Page

Just added 4/20/09
All Xplore – Submission Page

Just added 4/29/09
Mardox – Submission Page

Just added 5/4/09
AnazitisiS – Submission Page

Just added 5/5/09
Yasmos – Submission Page

Just added 5/11/09
Najdi.si – Submission Page

Just added 5/13/09
HopHunt – Submission Page

Just added 5/21/09
STSEEK – Submission Page

Just added 5/25/09
Cnous.ch (French sites only) – Submission Page
Thagodz – Submission Page

Just added 5/28/09
ilse (Israeli) – Submission Page

Just added 6/21/09
Buscan.com (Canary Islands) – Submission Page

Just added 7/16/09
hengine – Submission Page

Just added – 7/21/09
Watta Search – Submission Page

Just added – 7/27/09
iSTOP.in – Submission Page

Just added 8/10/09
Jabse (Bulgarian) – Submission Page

Just added 8/11/09
Liggs – Submission Page

Just added 8/16/09
IWannaSearch – Submission Page

Just added 8/23/09
Wirtualna Polska (Polish) – Submission Page
Szukacz (Polish Sites Only) – Submission Page

Just added 8/25/09
Portelo (Israel) – Submission Page

Just added 9/3/09
Active Search Results – Submission Page

Just added 9/14/09
Ara.com.tr (Turkish) – Submission Page

Just added 9/24/09
SitiDi.net – Submission Page

Just added 10/21/09
Coyote Search – Submission Page
Spider Monkey – Submission Page
Logical Cities – Submission Page

Just added 11/1/09
ExploreWWW (requires registration) – Submission Page

Just added 11/18/09
Bing – Submission Page

Just added 11/26/09
Geona – Submission Page
LookClick – Submission Page

Just added 11/28/09
Secret Search Engine Labs – Submission Page

Just added 12/2/09
Gooru – Submission Page
Semager – Submission Page
Sujada! – Submission Page

Just added 12/17/09
Duck Duck Go – Submission Page
Search Sight – Submission Page

Just added 12/28/09
Ulysseek – Submission Page

Just added 12/29/09
Active Search Results(ASR) – Submission Page

Just added 1/4/10 (first one of the new year!)
Feedeep – Submission Page
UNAMOO – Submission Page

Just added 2/13/10
cruiser (Serbian) – Submission Page

Just added 2/25/10
SitiDi.net – Submission Page

Just added 3/15/10
Secret Search Engine Labs – Submission Page

Sorry about the delay….:-)
Just added 5/17/10
SoSo (China) – Submission Page
Information – Submission Page

Just added 6/4/10
Slider – Submission Page

Just added 8/13/10
U2Search – Submission Page
Uzoekt (Dutch) – Submission Page

Just added 9/10/10
Gocome – Submission Page

Just added 12/28/10
Ultimate Web Search – Submission Page
Secret Search Engine Labs – Submission Page