Email advertising

it really depends on the content of your site, chitika is one of the closest alternatives to adsense, but if you have the type of site that can actually recommend products you might do very well as an actual affiliate, i found eBay and commission junction to be very good at direct sales, commissions good too.

Of course there are a lot of other advertising programmes available on the net.
Adbrite.com is a very good alternative for google adsense.
Chitika is also good, but works well if you get search engine traffic from us and canada.
Komli also found to be good, works well only if you have huge traffic
Kontera ads, also a very good opportunity.

Any how i recommend you to make another adsense account.

Invalid clicks is a “catch all” term that they use, but it does not always mean that the publisher cheated. It can mean anywhere from clicking on your own ads, labeling the ads, inciting visitors to support the site and click on the ads, etc.

It will not be up to Google to prove to you how they caught what they deemed as fraudulent clicks on your site. They will not show you the IPs of those who clicked. Instead, explain to them in a very professional manner that you never caused invalid clicks and send them your logfiles to help prove your case.

You have to remember that the first responsibility of Google is to satisfy their advertisers, where the money comes from; and not the publishers. They need to protect the interests of advertisers at all cost. As a result, any clicks perceived to be less than above-board are investigated oftentimes leading to the cancellation of the account of the advertiser.

There have been many cases of publishers whose account was initially disabled but reinstated from the program. Here are some threads from Webmasterworld.com of such cases:

But if you are looking for other advertising programs

1. Join an advertising network. Advertising networks are organizations that aggregate Web sites that offer advertising space, and sell banner ads (and other advertising options) across them. Traffic requirement is often a minimum of 5,000 monthly impressions, although many do not accept sites hosted by free page services.

Burst Media
Fastclick (ValueClick).
Advertising.com.
Tribal Fusion

2. Participate in contextual advertising networks. Contextual advertising are text ads delivered based on the content of the web page using an automated system.

Yahoo! Publishing Network (currently in beta and available to US publishers only)
Intellixt
Quigo Adsonar
IndustryBrains
Kontera
Kanoodle Brightads
Clicksor
Contextweb
Bidclix
Bidvertiser