Not really a tip.. but wanted to point out a HUGE affiliate website worth checking out:
http://www.toptenreviews.com
- it is useful for finding new niches , offers, etc...
- the site has been around for over 5 years..
- most of the traffic is from SEO
- LOTS of niches on the site monetized by PPC ads...
great example of a long lasting affiliate business......
if you surf around the site u will see most of the links are affiliate links
(great for finding Keywords : Offer combos to bid on with PPC traffic )
-C