Javascript problems

Watching videos from a last CodeMash (at this point of time, they are hard to find, as for a CodeMash 2012 event). But check this out. An excellent presentation of an interesting behavior of a JavaScript language.

Major unsolved problems in CS

There is a nice discussion going on on a stack exchange about major unsolved cs problems, so if you are a math fun (as me) it is something to solve on your free time.