As someone who is now staying at home and has been pretty much cut-off from former coworkers/friends as a result in the change of my job description, I found this blog entry by uber-talented artist Tom Richmond really resonated with me:
"He said he had a similar tendency to be distracted by forums and e-mail, and said he believed it was to fulfill a need for basic human interaction. That makes sense to me. Freelancers spend their days holed up in a small space working in solitude, yet humans are social creatures who need to interact with each other. E-mail and forums may be a poor excuse for real human communication, but it perhaps does satisfy that basic need. "