In November I tried out seolinkvine which is one of Brad Callen's properties. Basically it's a network that takes articles submitted by you and allows blog owners to manually approve them if they want them published on their blog and under the guise of original content that can build traffic.
The price is $67 a month and through Clickbank. I submitted 11 articles over that period on various items internet marketing related. They do not tell you how many blogs are in their network. They also will submit your article to a maximum of 4 sites a day and this is supposed to go on as long as you don't delete the article. You can submit an infinite # of articles a month.
After a 1 month period, I was submitted to 84 sites. I was not given a list of which sites my articles were on and was only shown a number of the sites (so X article was submitted a total of Y times).
A colleague told me of some of his happiness with 1waylinks, which is one of Jonathan Leger's properties, so I gave that a shot. It's $47 a month. You have to add a blog which supports XML-RPC into their network which is around 6,600 blogs. They advertise this # on their website. For the $47, you get 250 "credits" or basically blogs. You can determine how many of the 250 sites you want to use a post up on and you can determine the # of sites per day to distribute the post on.
To be clear I am comparing the two side by side based on cost per link. I went into this assuming that both services had a large majority of PR0 or unranked sites simply because of what I was paying per month.
Notes:
* On a per link basis, SEOLinkVine came back with a $.79 per link cost while 1WayLinks came back with a $.19 per link cost.
* Each service allowed 3 hyperlinks within the article maximum so that was even.
* For reporting, SEOLinkVine only told you a total amount of posts that had been published. 1WayLinks gave you the URLs so you could verify.
* Both had article spinners that worked the same. I didn't notice if one was any better than the other.
* SEOLinkVine is a manually approval blog network while 1WayLinks is a mandatory approval blog network. With the blog you create to put into their network, 1WayLinks requires that they can post 100% of the articles submitted.
I hope this helps.