On the last 48 hours I received 3 invitations to connect through LinkedIn of people that I never met or talked to. That is a pretty low standard.
I know some people are making LinkedIn into a competition and inviting whomever they can to make 500, 1000 and sometimes 3000+ connections.
I only accept invitations (and invite people) if:
Marcelo Calbucci @ LinkedIn
Twitter @calbucci
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