I've been writing hubs on hubpages,and wath happened is that some hubs simply not show up in google when i make the search, and yesterday I had a hub placed on the front page on google,and today when I go see it just disappeared,someone can explain why this happens and what's wrong? thanks
It is no wonder if Google often changes ranking in their SERP's ! Google might found your post to be the latest and most relevant one and hence displayed in search results but if the keyword that has displayed your link has high search volume you need to focus on the links popularity for consistent results.
It happens all the time. Websites and pages move up and down and from nowhere to first page and back again. Such is Google. If you want to see your webpage near the top more consistent then build some quality backlinks.
It has a mix of "Fresh content" and "Domain Authorization Status". Most of every new content published under some strong and authorized status domain including Ezinearticles, Hubpages, Squidoo will be shown on Google first page because of its fresh and domain power. However, if those content has some keyword or topic which is related to high competitive keywords then the result should be temporarily only before got disappeared due to weakling against the site that ranked before.