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jQuery 1.6 Released
ExtJS 3 to 4 Migration Guide
Following last weeks release of ExtJS4, Sencha have published a guide that assists people migrating their ExtJS3 applications to ExtJS4.
Ryan Dahl and John Resig AMA
Ryan Dahl (creator of NodeJS) and John Resig (creator of jQuery) have done AMA threads on Reddit. AMA (ask me anything) threads give the opportunity for anyone to ask a question, the creator of the thread (Dahl and Resig) then responds to them. I have found the threads to be very interesting as people have asked in depth questions about their projects (NodeJS and jQuery), programming in general, workspace setups, recommended books and education.