eh, like Yumil I like google, but...man does this suck.
You could always try getting your account reinstated, sometimes they'll reinstate, sometimes not. What you have to realize is that google is doing something cool here with these adsense, however, read the TOS carefully, does it not say that YOU can't click but others can? Did you actually violate any TOS on your side?
Again, remember google is letting you use this service, so don't go demanding adsense back despite the fact it wasn't your fault. But...make them infer that it wasn't your fault, and if there's anything you could do to prevent invalid clicks from happening.
here's a link from a guy who had to appeal twice:
http://stason.org/articles/money/how_to_bring_google_adsense_down.htmlwhat amuses me after reading it, is that, apparently google only reinstates your account if you're well informed, willing to change whatever happened, can provide a logical reason as to how it WILL stop, and are humble about it.
As to alternatives, there are:
http://labnol.blogspot.com/2007/01/adsense-alternatives-when-google-bans.htmlbut...google is so damn nice. try to get adsense back, also...if you do appeal again, make sure it's not just a copy of your previous appeal. They most likely keep track of your appeals, so if they see you have done research and are willing to do anything you can to get adsense back, they just might reinstate.
honestly though, google is trying to prevent fraudulent cases from bots and what nots. There are numerous things that could've happened. With the rise of netbots, and even people who use other people's ips to bypass those captchas, it's insane to be able to police all these adsense sites. so once they see an anomaly of like...100% increase in clicks in one day, they will ban you from adsense.
the only thing you can do really is appeal, and as I said, try to provide them with any info, try to understand how this could have happened, and most importantly try to imply that there is a way you could stop this. maybe for example, it was just a netbot who was clicking ads like crazy to bring you down just for a week. or somebody from nsider2 was probably just trying to be cute and not that they've had their jollies, they're going to go away, or that somebody just went trigger happy and wanted to see what was on the ads, and that you don't condone that behavior, really...there are alot of things that could've happened and alot of solutions to them.
most importantly, remain respectful. they're providing you with a service that you can either use, or not use; don't get disgruntled over it. there are other alternatives, albeit not as well recognized or even good as google, but, they're out there (lol...i noticed nsider2 got adbrite.com to datamine all them nsider2 users xD).
umm...that's the only info I got. My only experience with adsense was with this small webpage for the robotics club at my school...I wish I could help out more, but I am not at liberty right now to donate nor do I have sufficient knowledge to help cuccooscratch out.