Anyone who is serious about the free stuff(see 'lets all help each other get free stuff' thread) will be familiar or at least heard of Netbux. Netbux basically pays you $.02 for every search you do, with a limit of 40 searches per day. Seems little right? Right. So you must get referrals. Each one of your referrals searches drops you $.02 as well. Every month on the 15th, they pay out(via paypal. This service does not require a credit card directly).

I have heard of a few getting paid out, but have not witnessed any myself. This site is the most respected and higly rated of the 'money for searching' sites that are out there.