Im new to SEO, so hear me out I have 2 questions my first is, 1. When commenting on auto approved blogs, how long should I wait before my backlink actually gets indexed so that when I check it on a backlink checker such as iwebtool that it appears as a backlink for my website. 2. My second is, when Im making web 2.0 sites, and then simply posting an article then a link to my main website. Do I need to do anything else? Or since these are web 2.0 sites they often get spidered so I just post the article and my link and wait for the link to get indexed? Thanks.