This is certainly a good resource but I'm not sure it is quite the killer resource it seems. The guest posting system is just a list of sites that allow it. You have no guarantee you will get a backlink, particularly from the bigger ones. I have found a lot of these sites already and while I was able to pitch an idea that they found interesting, the backlink to my site was removed and the other links to the likes of Wikipedia remained. Felt like a waste of my time in the end. Since a majority of the guest posting sites here function this way, you won't really get value for money in this area. It is quite easy to find these guest posting opportunities by searching Google and this forum.
The backlink database is mostly profile backlinks. A few others look like some kind of web 2.0 sites that allow you to create a subdomain blog. These are all DA 0 since a subdomain does not have the authority the root domain has, making them worthless really unless you are building a 2.0 blog network and want to spend money building links to these 2.0 properties. I checked some of the sample links provided for these and they dont seem to be worth anything.
The backlink db is large but it cant be sorted. There is no way to list them by DA or by type. You have to click into each to figure out the metrics and even then, most are wrong. The root domain DA isnt applicable to a new subdomain. The google stack instructions are handy but also freely available on this forum.
Overall this service is only useful for those looking for lots of profile backlinks or plan on building a web 2.0 network. I feel i may have wasted my money with this but hopefully this review helps others who are thinking of purchasing it.
