What is your opinion on a technical blog? like http://www.mooreds.com/wordpress/ (note, this is mine)
Is that more or less useful than a github profile?
Just curious.
I think it is about equally useful.
It shows something slightly different than a github profile since it doesn't typically show full projects but both can show off competence pretty well IMO.
Someone with a well written technical blog or good github portfolio is definitely going to have an advantage in any hiring I do.
So far, there hasn't been one candidate that had anything resembling a portfolio online, but we don't hire all that often and i've only been doing it for a bit over a year.