Hi Laura,
If so I think the easiest way to ping ALL the major blog aggregators is by using pingomatic or
http://www.pingoat.com/. They both ping Technorati plus TONS of other places for you with one click.
Are your blogs WordPress blogs? If so, you can set it up to automatically ping for you everytime you post a new entry. Let me know if you want to do this and I can go look and tell you where to do it.
I dont' like to do it that way because often after I publish I change the title or do other editing so I like to ping manually after I have the post the way I want it. With both pingomatic and pinggoat you can bookmark the link after you set up the blog so with one click it auto pings everyone.