Well, I did say "and twitter account if any". Looking at someone's twitter stream who's poking at some new library or talking about some code they wrote tells me a lot more than "1 year of php development" on a resume.
It may be arbitrary, but github+blog+twitter has worked well here.
Twitter is tricky. I very rarely if ever tweet about technical topics for a couple reasons:
1. I don't think anything technically interesting can be accurately explained in the 140 characters provided by Twitter.
2. Simply announcing what I'm working on is self-congratulatory back-patting. No one cares what I'm working on that hour.
3. I have many non-technical friends (e.g., no one else in my frat is CS). I would not alienate them from a conversation by only talking about tech all the time.
It may be arbitrary, but github+blog+twitter has worked well here.