As a smaller setup that requires far less traffic than a large scale real-time application, what are the draw backs of just using a basic MySQL installation? We've hit over 20k views per day on our internal wiki with no signs of even coming close to any limits with either our hardware or the SQL stack.
MySQL is okay. I still think Postgres is better, but the more severe of the problems MySQL had in its early days have been fixed, and honestly it's good enough for most sites. Certainly it's far better than MongoDb.
