To quickly determine whether your site is still in Google index, just perform a Google site search for its entire URL. e.g. a search for

[ site:www.diademblogs.com or site:diademblogs.com ], for instance, returns the following results:

Results 139 of 39 from www.diademblogs.com. (0.25 seconds)

If your site is displayed as a result when you perform a Google site search for your URL, then it’s included in google index, which is the first step in getting your site listed on Google search results.

If your site is not listed in the Google index or if you would like to enable Google to spider your site frequently for fresh content, signup for the google webmaster tools at http://www.google.com/webmasters/.