http://www.cash4toolbar.com/
Check out those guys... Seen the sources and everything in Miami and I can ensure you that this is a way bigger money maker than most of the crap out there considering you get also paid 25% of all revenue they earn.
Apart from that I also have to mention what the python crew has to offer. Dollarmachine also added a great, new toolbar to its portfolio paying something like 50 cents / install.... but don't quote me on anything hehe