Guest Blogging Sites & / Or Software suggestions

I need to do some guest blogging for my SEO clients. However, as you know, finding blogs that accepts guest bloggers, then contacting them all individually is taking W A Y to long! There has got to be an easier way that is not going to cost me and arm and a leg.

So, my question to you, great wise ones , is.... What Guest Blogging Sites or Software are you using?

Thanks!

BUMP. Please and Thank you.

myblogguest is a forum spesifically for guest posters, create a tread with the content you have to offer then wait for the offers.
diamond links do guest posting too I think.

failing that you can always go to private blog networks, there are plenty on offer in BHW

Here are a few:

You could also try getting organized in Excel or Google Docs
Scrapebox is another solution that can speed things up
Sweetfunny sells Scrapebox here on BST thread