I’m in the process of experimenting with the multi-site capability of WordPress.

This allows me to run multiple blogs on a single instance of WordPress.

Right now I’ve moved this blog and Eclipsey Ramblings to multi-site. I’ll probably be moving Fallingrock Photography to it also (after I figure out the bug that’s causing the photos to not display correctly).

A few observations about the migrations that I’ve done so far …

• The category structure didn’t get migrated very well.
  • Duplicate entries
  • Some lost of hierarchy
  • Category ‘slugs’ (short name that are used in the url) were changed.
• Some posts, that used specific html, got corrupted.
• Themes that make fully qualified references to assets (images, scripts, etc) don’t work correctly.
• Plug-in configuration options were not migrated

Personally, I would have liked to see the ability to migrate a blog from single instance to multi-site using direct database to database conversion.