I have old blog posts (>15 posts) created 6 months ago. For some reason, rather than creating new post, I just updated the old content with additional information. What I want: when someone search the post, they can see the updated/new content. My question: 1) Do I need to use http://www.google.com/addurl/?continue=/addurl to reindex my URL? 2) Or should I do nothing and just let the google crawl it automatically? If so, how long will it be updated? Why it took > 1 week and still haven't been updated? In contrast, when I submit NEW post, it was indexed quickly within 1 hour.
you can just submit the updated post to social bookmarking sites, or gather some links.. google will going to crawl and index it..
1- link to updated posts from famous forums like DP and many others 2- interlink your inner pages properly and robots will keep jumping from a page to another thus indexing all your pages and update them regularly.