Hi-

I'm trying to find a product that will suit a website that I am trying to put together and am looking at wikis.  There are so many with so many features it's hard to figure out which will work.. if at all.  Looking for something open source/free.

I am working to put together a site that provides information on local communties and neighborhoods.  This would require giving people the ability to submit info on a area and complete a set of defined fields plus some text.  A map with streetview features would also be integrated to correspond to each neighborhood. 

What would the best software be for this... if any?

Tks.