For example if I have 10,000 posts and someone wants to buy my signature link, so I will change my link to the buyer's link, right. Then how much time it will take search engines to count all those 10,000 links as a backlink to his site? Any idea?
it depends on the speed and activity of the googlebot on this site... for example,if Dp has opted for maximum crawl rate,then those 10,000 links will be counted within a month by the google bot.....
I don't think 'all' pages will be re-crawled in a year. Some of the old threads where your link is present might take a year before google bot visits them again.
Part of it depends on the quality of the site, does the site submit a site map to google daily, how often does the google bot crawl the site,,,,,, there are several factors that determines when a the link will be found. I have seen some forums with over 1 million post, but only have 20,000 pages indexed with google. On sites like that, the link might not be found for months. The easier a site is to crawl, the sooner the link will be found. From my experience, its usually 3 - 4 weeks before a link will appear in the google webmaster tools.
Thanks for all your replies. From your answers we can make a conclusion that the maximum benefit from the signature links depends on the crawl rate of search engines right?
yes, i think google will crawl when they want to update PR... sometimes 3 month and sometimes 6 month..
hey one confusion... if some one will get 10K backlinks in a month for one keyword dn his site might sandboxed? or not?
I was thinking the same, if the signature links get swapped around a lot, you would have lots of people with the same backlinks?