When I was doing my research and came across a bunch of "Why not to use MongoDB" articles, I looked at alternatives solution to see if there was anything "better." Granted NoSQL is the new kid on the block but I wanted to see what my options were. Guess what I'm using, MongoDB. Why? Their documentation is fan-f'n-tastic. Their newsgroup support is just as good, lots of folks who help troubleshoot issue, including the developers themselves.