Keywords
Selecting Domain Name
Search Engine Optimization
PAY-PER-CLICK
Blogging
Search Engine Submission
Web Hosting & Optimization
FAQs

ENHANCE
If you sign up with this one, you can receive $10.00 additional credit added to your minimum sign up fee.
Offers a variety of options on how to advertise your website.
Enhance also includes only a 3 cent minimum on their pay-per-clicks.

For this quarter (Oct.-Dec.) Enhance is offering a $25.00 credit with your minimum $50.00 sign up fee, for first time sign-ups.
Great time to take advantage of driving traffic to your site.

 
SEARCH 123
Sign up with this one and get $20.00 credit in addition to your $50.00 account sign up.
SEARCH 123 is a little harder to figure out, offers a minimum of 5 cents per click.

SEARCH TERMS
Use the handy Search Term Suggestion Tool, and the View Bids Tool to determine the Search Terms you would like to use. Also includes a handy Return On Investment (ROI) tool.  The largest of the Pay per click Search Engines.
Overture's minimum is 10 cents per click.

  
FINDWHAT
They have partnered with eSpotting to hopefully bring more results.
Clicking from here will get you a $5.00 credit with your $50.00 initial sign up fee.