I think at the core, these are different companies. FB is a social network, groupon is a deal site. The skill set to dominate these two spaces is very different

I think at the core, these are different companies. FB is a social network, groupon is a deal site. The skill set to dominate these two spaces is very different. Agreed, they have a huge distribution channel but so does for instance Target or Walmart, but groupon just doesnt align to those companies core competencies. Hence not a great fit.