There is probably some good to be gotten from writing a hub on VB, the amount of good would depend on what part or which type of VB you decide to write about. You mention VB in the context that it is one (1) of the three (3) languages supported in Visual Studio Express. Looking at the page your question is posted on I already see one (1) Hub teaching VB Express for beginners and another discussing forms in VB.
What I’m suggesting is you might wish to select a particular part of VB and discuss that or a particular usage of VB like Visual Basic for Applications. I worry that if you just generally discus the topic you’ll become redundant to others before you. I would think a little Googling would help you in discovering esoteric topics of VB that the general blogs/hubs have missed. I think this approach would allow you teach a part of the subject not already gone over numerous times.
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