Are blog / site names trademarked?
Here is another blog named Stack Overflow... What are the legal implications?
No legal implications whatsoever - this programmer started his blog in 2006, two years before Jeff and Joel chose to name their project StackOverflow.
If anything, HE might be feeling a tad miffed.
From that blog (entry on June 2007):
I wonder how that has changed over the last year!