Thanks Tess. You know it, this is a topic that's really near and dear to me.
I would highly recommend not doing press releases this way. Even though it's quicker, it's not going to give you the same results as submitting them out yourself. Plus, many of the places will actually hurt your chances of success. You'll see that when it's published there's odd characters in there (even though you converted to Notepad), the formatting is off, etc. Plus a lot of the press release sites just won't accept them.
Here's some tips for sending out press releases that might help with your speed.
1) Set aside a few hours to do this. Without interruptions, you get your groove on and can go so much faster.
2) Have an excel document or any document that lists the places you want to submit to, your log-in information and password. One of the things that can take the most time is having to figure out what your password is to each site.
3) Utilize your copy and paste features. I use FreeClip. It's amazing how much quicker I can do it with this tool. I copy and paste into the FreeClip initially, and then it's just a matter of clicking onto the appropriate box when I want to insert it.
4) Have the sizes right. You save so much time if you don't have to check each time that the summary fits, etc.
Hope this helps!!! Good luck with your submissions.