Watch Out For .BlogSpot and .info Blogs
Just like a lot of the blogs using blog review services may be ‘review only’ blogs, some may also be of very low quality and using virtual freebie blogging platforms or domains such as .blogspot.com, .blog-city.com, or .info to host their blogs.
Not to say that all Blogspot blogs are trash, as there are many high value Blogspot hosted blogs on the market, but just keep a watchful eye on these blogs when approving or purchasing reviews. In addition, some blogs hosted on subdomains can have inflated Alexa stats which influence their review pricing or ranking.