If you like reading player scouting reports and obtaining information on how scouts view certain players (and how they grade them on a 20/80 scale), this site is for you:
http://mlbscoutingreports.com/
It's run by a former baseball operations guy and two active scouts. The website's awesome, with tons of information and a ton of available player reports for free.
P.S: I am in no way associated with them, and am only posting this because i eat this stuff up and wanted to share with the rest of you.
Oh, and this is pretty cool too:
http://bleacherreport.com/articles/1633315-full-scouting-reports-for-the-10-greatest-mlb-players-of-this-generation
It's an article over at BR that presents the scouting reports for ten of the best players of the past and current generation (Pedro, Randy Johnsonn, Albert Pujols, Jim Thome, Chipper Jones among others).