hi is there any website that can give me the name of articles that have been published on the methylation of a specific cpg island? or in general a web site that gives me the articles that have been released about a locus of the genome?
You could try using PubMed's 'Advanced Search' a try.
All you need to do is plug in the cpg island you are looking for into the search box and then in the dropdown menu to the left, select to search for this cpg island in the title, abstract or all fields.
Hope this helps,