I see that there is a software for each sort of SEO (bookmarking, commenting, angela backlinks, etc) but there are so many of them that i'm lost... Bookmarking : services OR bookmarking demon / SEnuke Commenting : services OR commenting software Angela backlinks : services OR brute force (i think) Linkwheel : services OR linkwheel software (i don't know which one but i think there is one ^^) [...] So for each of these works, what should I do ? software of services ? If I have 20 sites to promote, I should buy and use softwares, but would that be as effective as if I order services ?? Can you give me your opinions and can you tell me what you are using yourself ?