Hi all, From 1st January 2012 my website (http://www.hoodaki.com) is cached by Google, before it the website cached every day, so what is the main reason of not caching.
Google is likely the sole decider on how often it will cache your site. Has the content changed on your site? Has your site gained any new links? Do you have a sitemap submitted and your site registered in the webmaster tools? Keep in mind SERPs are different than the cached version, so you may be able to find updated content from your site in the SERPs but it wont show up in the cached version right away. Sometimes my sites are cached every few days, other times it can take several weeks.