Which blogs did you contact to get coverage when you launched?
petercooper: Don't just rely on Technorati. My blog has an engaged subscriber base of 20000+ yet we do verrrry poorly on Technorati (somewhere in the 5-6k range, I think) because we don't many inbound links from other blogs ;-) Googling for "[your topic] blog" and "[your topic] blogs" will bring up even more options.