Need ideas for a php script giveaway

I have a website where users complete an affilaite offer for me (double meta refresh with nonincent offers), I sprinkle plenty of traffic from traffic exchanges, and in return I give them an ebook of their choice from my collection... they see an excerpt and then choose which one.... but enough about that....

I was wondering if anyone had any ideas for a php script I could uses as a reward, and then I would install it for them, customize it for them and give them an ebook I right on how to make money, get traffic etc.... that way I can have them do more offers and I make more money.


All contributions are accepted + if you wouldn't mind explaining a little bit for the ebook on making money with it and traffic.

Thanks a lot!!! BHW rules!

PLEASE NO ADULT SUGGESTIONS

url harvester + prstorm + you write a small pdf about google hacks: search the forum for this ebook. and keep it simple

* php script: scraper / harvester.

What would be the point of harvesting urls?

for finding public stats for prstorm.