whats up dudes For the last 3 months or so I experimented quite a lot with different link building services (for tier 2 mainly) from bhw marketplace and some other sources. Most of them were supposed to help me ranking web2.0 for low competition long tails. Some of them worked. Most did not. Surprisingly most of the services who have been existing for years and got very good feedbacks rarely worked for me. New services with less feedback / reputation tended to do better. That made me wondering if there is something as a "life span" for link services. I cant look behind the scenes of these services but it might be like this: 1) seller is new on the market, works his ass of to provide a good network and valuable links to his clients. His sites are still new and spam free 2) service works, clients see good results, seller gets good feedback 3) more and more new clients come in due to the good feedback 4) sites become more and more spammy. But still good feedback rolls in because good feedback is like an upward spiral. Nobody gives a bad review when there are 100 positive reviews before 5) seller has the success he wanted. He becomes more and more lazy, works too little to keep his network fresh 6) google sees all the spam and the links from this network are more and more devaluated. But still orders roll in. 200+ positive reviews... must be a good deal Certainly there are sellers who always go the extra mile and stay on top of the game. I guess many dont do that. Having said that: Do you think that there is something like a life span for link services? Isn´t a service with 500 positive reviews likely NOT to work anymore? Most important: How do you know if a service is good or bad? Do you take the time to do extensive testing?