This site is being flooded with off-topic questions about building web apps. Unfortunately, these off-topic questions are being upvoted a lot. These are clearly not questions about webmastering, they are questions about web app development, which could go on stackoverflow.com or a site specifically about web app development.
Which minimum browser or screen resolution should I target my web apps?
Web Application Design - Good reading materials?
Advantages/disadvantages of "separated" web applications
How would you establish user credibility for your web app?
How can I decide if I should roll my own software or use a packaged CMS (and appropriate plugins)?
Also, almost all of these questions are sort of vague, unanswerable "what on earth should I do now?" blah blah discussion questions, which I thought was what we were trying to avoid with these stackexchange question and answer sites.
Also there is a proposal languishing in Area 51 about web design. I went to Area 51 to make the proposal but it's already there: