I'm building a customizable meta-search engine

Hello fellow entrepreneurs

I'm building a google-like website that lets users connect their accounts from different services so they can basically search anything with one tool.

So far I've added the ability to connect it with Gmail, Google Drive and Evernote. That means that when I type "cat" I get all my emails, files and notes with that word!
I'm also planning to add the ability to show results from existing search engines like google, duckduckgo, bing etc.

I would love to hear your thoughts about it! I am quite interested to know what other services you think it would be useful to add.
Oh, and if you're really curious, I'm happy to give you early access :)

Cheers!