I have been personally working with Advertise with Bloggers for a few months now. I love the work I get because it is sent directly from the woman in charge and she sends me things that I know I can write about or post on my blog. I have noticed with the increased work I have been getting from her I have been producing more of my own blogging material. Since I haven't been as active as I was, it is a nice motivation.
Advertise with Bloggers is ran by a mom that took blogging to the next level. She kept receiving requests for guest posts and advertising posts, but quickly found herself overwhelmed and needed a way to keep up with the work. She started her own network of bloggers that she trusted to post on their own blogs. This allowed her to take more jobs and spread the wealth to other bloggy moms. If you are interested in turning your fan following into some nice cash flow and have at least a PR2 rating, this might be right up your alley.
Currently she is looking for bloggers that would like to have guest posts added to their blog. It not only adds content to your blog, but it allows you to get a bit of pocket change. In my experience, the payments occur within a business day or two of the post going live and being approved by the advertiser, which is much faster than any other site I have used to do sponsored posts. I don't promote things that I don't believe in or haven't tried myself, so rest assured that this isn't a scam. If you are ready to take your blog to the next level apply here and make sure to say Midnight Mommy sent you!