How to create a bot for gtalk that search for online help Java?

I have idea that for people who use gtalk especially for developers, how to write a bot that recieve question from one developer and ask other online developers for help based on their programming skills?

1. Bot added by the user to gtalk and user will gave his/her skills at first time

2. Then if someone ask a question application wi开发者_运维问答ll search for the online users who have similar skills to question

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Sounds like you could just link to stackoverflow, and be done with it :)