Hey guys, I was wondering if there is any way to pull up reliable statistics on how many PHP developers there are and how many sites utilize PHP? Also, if there is a way to get real hard stats on the use of any given programming languages like C++, Java, HTML, etc. I ask this for research purposes. Also, I wanted to segment out PHP (as well as other popular programming language) users, in particular beginners. One way I was thinking to segment out and get a feel for how many beginner PHP developers there are was by tracking book sales of 'PHP for beginners' type books. I know this one isn't a technical question, but is there a way to look up book sales numbers? Thanks for any help you guys can provide!