I am an application engineer with a German diplom university degree in computer science *) working in international projects as technical lead, developing web and Windows applications as well as web and Windows services for the .NET Framework based on Microsoft technology.
In my opinion, StackOverflow is a great platform to exchange knowlege like this and I found many tips there, which is why I am always very motivated to give back knowlege by answering questions where I can.
*) Note: According to wikipedia, the German diplom is comparable with a Bachelor's and Master's degree in one (see http://en.wikipedia.org/wiki/Diplom).
Some hints and tips around Stack Exchange:
Q&A for professional and enthusiast programmers
Q&A for Information security professionals
Q&A for computer enthusiasts and power users
Q&A for SharePoint enthusiasts
Q&A for system and network administrators
Q&A for theoretical computer scientists and researchers in related fields
Q&A for power users of web applications
Q&A for professional programmers interested in conceptual questions about software development
Q&A for linguists, etymologists, and serious English language enthusiasts
Q&A for speakers of other languages learning English
Q&A for software developers, mathematicians and others interested in cryptography
Stack Exchange Network staging zone, where users come together to build new Q&A sites
Q&A for meta-discussion of the Stack Exchange family of Q&A websites
Q&A for enthusiasts and power users of the Android operating system