Gtalk is blocked on school computers. Are there any web-based chat clients (besides Meebo, that will be shut down on July 11, 2012) that support Gtalk?
closed as not constructive by Eight Days of Malaise, Barry♦ Jun 18 '12 at 10:09
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Try install pidgin or nimbuzz on your school computer and then you can access the GTalk. But I think that your school must have blocked the ip of the gmail server so its better to get another proxy (another ip) and then access the gmail server by your browser.