Try Moreniche as well, various products you could cash in (see my sig) Try MoreNiche, maybe not 70%, but up to 175$ per sale for sure... (see sig)
I like Clickbank, but the sales are fickle, my other, lesser known affilaite programs convert more consistantly
This gets my highest recommendation because not only can you earn a lot of money promoting it's high commission products, but you can also learn a great deal about Personal Power & Wealth Discover The Power That Creates Online Income --->http://profit.delfinworld.com/
Shareasale.com => gives empty page :-( Are they changing servers or so ? I see, in cache of Google of a couple of days old, their site though...
I like a different one, and I haven't even received money from them yet My blog describes all the nice features of it: http://iownagloco.blogspot.com
MN & WN are the best for me, so far. Sign up through my site (see my sig below) & I'll help you promote your site
Right now I am using Linkshare, but it takes a long time to get payment to me once sales are final. I may start checking into other programs.
How do you put affiliates on your site? I mean I wouldn't put digital products on my chemistry site , would I?