This is a small handful of the many sites out there offering free advertising.
ezcashrace- http://ezcashrace.com/?ref=winds7seas
Free To Advertise Forum- http://freetoadvertise.biz/register.php?referrerid=761
Free Advertising Classifieds- http://www.free-advertising-site.com/profile.php?mode=register&refer_id=9876
Post Your Ad For Free- http://www.postyouradforfree.com/register.php?referrerid=16685
Free Advertising Board- http://www.freeadvertisingboard.com/index.php?referrerid=9348
Free Advertising Forum- http://www.freeadvertisingforum.com/index.php?referrerid=264716
Free Ad Biz Top Forum- http://freeads.biztop.com/register.php?referrerid=4866
Adboardz- http://adboardz.com/?sponsor=winds7seas
Ad Free Classifieds- http://www.adfreeclassifieds.com/index.html
Free-Ad Depot- http://freeaddepot.com/?aff=44869
Hits 2 U- http://www.hits2u.com/?532941
Traffic-Matrix- http://www.trafficmatrix.com/?173
Free Ad Planet- http://freeadplanet.com/?affid=21239805
Promote Click- http://promoteclick.com/index.php
Global Auto Hits- http://www.globalautohits.com/?ref=846
Double Rainbow Surf- http://www.doublerainbowsurf.com/?r=58130
Fast Creeper- http://www.fastcreeper.com/?ref=4944
I Speed Surf- http://www.ispeedsurf.com/?ref=318
Quad Hits- http://quadhits.com/?ref=126
Prof Hits- http://profhits.com/?r=58546
Rapid Auto Hits- http://www.rapidautohits.com/?ref=183