I dont have experience with blog commenting and how google interprets them. I want to add blog commenting to my seo strategy in a safe way. Please evaluate my blog commenting strategy below. I plan to hire people to post blog comments in my niche. Actually in my general niche. Lets say my web site is about "android" and i will accept blog comments from any technology blogs (e.g. windows, linux, tablets, php, java etc.). I plan to specify following restrictions for the blog comments: - Comments should be informative and unique (will be checked with copyscape) - Google-indexed and PR5 or above blogs (not blog pages) in my niche. Google-indexed means that the blog have at least 20+ pages of the blog in the Google index. - OBL for blog pages should be lower than 30 - Minimum number of words for blog comments is 40 - Comments will be checked after 3-4 weeks. If they dont exist, they will be replaced in the next project for free. - Comments should not be auto approved. They should be protected by captcha or require registration. Note that i intentionally specified PR for the blog homepage (not blog pages) because i believe this is more natural. Even if blog comments are on new pages that are not indexed yet, they will be indexed and obtain PR by time for high quality blogs. No need to rush! Do you think that this blog commenting strategy is safe? Do you suggest anything else to make it safer? Can i use these comments for long tail keywords of my authority web site? How many maximum blog comments should i buy per month per site? How much should i pay for comments? I plan to have monthly projects. For example, i will get 100 blog comments for a project within 30 days. And finally, regarding links in the blog comments: Should i have links from the names or try to insert them into context? If names are used, should i use my keywords as the names or use actual names? I hope to get as many as possible comments from experienced BHW members experienced in blog commenting.