On a tangentially related note, before Feedburner (acquired by Google in 2007 for ~$100 million), the folks behind Feedburner had a startup very similar to femtoo.com. It was called SpyOnIt.com and was launched in 1999 and purchased by a competitor, I think in 2004. One of these folks (Dick Costello) is now the COO at Twitter.
I don't like to be a pessimist, but seriously, don't hang your hopes on cutting some kind of deal with Google on this. Both monitoring websites for changes and scraping content from sites are ideas as old as the web. There must be dozens if not hundreds of tools and websites in this space and while some will do it better than others, it is just not that hard of a technology to duplicate. It is possible, although unlikely, that you've come up with something remarkable and new on the technology front, but I think it is more likely you simply have a nice implementation of a solution to a problem many people have solved before.
On the bright side, I think you have better chance of succeeding on this without Google than with them. Your post reads like you're trying to sell a technology; that the algorithm is the selling point. Presumably your deal with Google would be on that basis. Don't do it like that. Instead, focus on using this technology as a tool to solve someone's specific business problem, the more specific the better (you can always expand the scope later). The fact that someone technically savvy could use Google Reader or Yahoo Pipes to hobble together equivalent functionality doesn't matter to the people who will be your customers. They are looking for a turnkey solution to their specific problem, and you're going to hand it to them at a reasonable price. The technology you've implemented is only the foundation. Find a specific business problem you can solve with it, that's where your money will come from. (Not to sound like a broken record, but reading up on "Customer Development" may help you on this front.)
[Edit: Fixed typo]