Yes, very yes.
I’ve just spent the last thirty minutes or so importing all the old entries I made from various old blogs I kept (and by various, I mean my old WordPress.com blog and my Xanga). It was really rather easy once I got everything working, and now I have all my internet writings compacted into one place.
I’ll forewarn you, though, especially if you’re wanting to look at the Xanga stuff: that’s some of the longest content I’ve ever put finger to keyboard for. It also means that my XHTML compliancy on those pages are shitty (Xanga’s “editor” makes it look soooo bad).