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Yammer will have a Community Forum for all Yammer users to post questions, collaborate with industry peers and engage with Microsoft support. Users will be able to access self-help, troubleshooting articles and industry best practices through a community of technology leaders.
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My comment is why are you making this so incredibly difficult to sign up and get the service? I would like to sign up for a paid account now but instead it looks like I need to fill some form out and "talk to sales". I'd rather pull my nails out than talk to sales. Just let us sign up!