Just stumbled on this thread, even though it's been active for awhile!
I've heard great things about PRWeb. Since submissions there can be awfully pricey, I've never tried them. They do have a great distribution list, though (or, where they're sending your release once you submit it to them).
Personally, I've had great success with PRLog. Their distribution list is great, and, best of all, it's free to submit to them!

(they just recently started a paid option that comes with a few more perks, but I've stuck with the free one).
I've also used IdeaMarketers in the past, but I haven't seen as many results with them as PRLog. They're also a free service.
The key is to look for
PR sites that are going to distribute your release to the right places. The good sites will have a list that you can look at before you submit anything, so if you see ridiculous news organizations - like "Bob's News Agency" or something of the sort

- you'll be able to tell that it's not worth your time to use them.
Quote:
Originally Posted by Brazzell Marketing
Be sure to read their guidance about reposts and duplicate content if you are using more than one PR website.
|
Duplicate content doesn't apply here; in this case, it would be
syndicated content. Your press release can be syndicated on a million different sites, and you won't suffer any "penalty" over it. In fact, that's what you're aiming for!!

You can submit the same exact press release to as many places as you want, without having to change a word of it. After all, the facts are the facts, right?? All you're trying to do in a press release is answer 6 questions - who, what, where, when, why, and how. If you could rewrite the answers, you're not really saying anything truly "newsworthy", now are you??