What is the different between the "Niche Guest Post" and "Guest Post"??? Why this service is so expensive? What is OBL? Why seller also tells buyers about OBL? What to do with this? Is that a good idea to have only Guest post backlink type to our Money site? Has anyone success or satisfied with this kind of backlink? Who have you bought this service from? All in all, I'm new to this, so I really don't mind to read everything you write. Please tell me whatever you know. Thanks in advance. Really appreciate your time.