I've been into press release submission two weeks ago. I could say that prlog.com is good site. If you want a list of both free and paid sites, you can visit pressreleasepoint, the site itself is a good PR directory.
PressReleasePoint.com is a great resource, janeuree, thanks for sharing that. I actually have a list of the top 15 free PR directories that I personally use, John. If you would like this feel free to PM me and I'll send it over.
Free to sign up, free to submit, free to have published. You can include links(within reason), pictures etc etc. Will get you listed on all major news feeds like Google News.
Only stipulations - we will NOT publish material that doesn't meet basic press release standards and it MUST be original.
Some of the ones listed here are not even published onto major newswires like Google News! Ours is!