One of the factors of Technorati's ranking algorithm is how many other bloggers have saved your blog as a favorite in their Technorati account (you can add mine here).
If your using Google Reader or another Feed Reader, there's actually a pretty simple way to add all of your favorites, though! You can export your OPML file from your reader and simply import it into Technorati:
Exporting an OPML from Google (lower left link):
Importing your OPML file into Technorati favorites:
Link: Import your OPML file into Technorati favorites.