Search Engines Updating Keywords
My question is to do with keywords and how often search engines update them. If I change my keyword or key phrase for a page how long would it take Google to update its index for the keyword or phrase so that it now shows up in a search for that new keyword?
Search engines don’t update on the basis of keywords. They re-index the code on your pages and how often they do this depends on their own update schedule. If you’ve verified your site with Google’s Webmaster Tools and Yahoo Site Explorer, you can view your stats to get an idea of how often your site pages are indexed.
Whether or not your site begins to rank for new target keywords depends on how well you’ve optimized your pages for those keywords and how relevant the search engines now determine it to be. If you’ve optimized well and your pages are indexed regularly, you should see the results within a week or two. But in terms of Google, you may need to wait for a major database shuffle before you see your revised pages showing up for new keyword searches.