SER Engines web 2.0 - no link

I noticed Serengines added a new category SER Engines web 2.0 - no link
Can someone please explain to me what those are, and explain what is the benefit of using it if you don't get a backlink from it.
Can someone please explain to me what those are, and explain what is the benefit of using it if you don't get a backlink from it.
Comments