Ask HN: Problems for my web solution?

cQuery.com is an application I built that extracts content from live web pages using CSS selectors:

http://cquery.com/

I was wondering if the good people of HN could think of any interesting uses for a web service like this...

If anybody is interested in the technology or how it could be integrated into other products and services, please do get in touch!

I believe this service is pretty much unique and there are loads more features I want to add - let alone doing a bit of publicity, but I am reluctant to invest time without having a clear objective.

Thanks!!!