Well a few sponsors still offer per click, but it's NOT like the days of old.
http://www.fpctraffic.com for one ...
Funny thing about programs that still do per click though ...
From the program description:
"That's right! We pay for all your clicks; no unique filtering,
no "second page" counting."
From the FAQ:
"1. We will pay a minimum of 2 cents for each unique hit that clicks a link on our website.
The Click Through program counts "second page uniques" from english language browsers. Occassionally, we will pay bonuses based on the overall performance of our program. The current pay rate will always be shown on the stats page."