Comment by saasinator

I'm interested in figuring out statistics as well and I would love if someone could share any resources they use. The best tool I've found is LinkedIn search queries. It's pretty general but it gives you an idea.

Some other sites I use when deciding some technical requirements:

    http://netmarketshare.com 
    http://caniuse.com 
    http://www.tiobe.com/tiobe_index