Focused crawls are collections of frequently-updated webcrawl data from narrow (as opposed to broad or wide) web crawls, often focused on a single domain or subdomain.
The Wayback Machine - https://web.archive.org/web/20140722153726/http://www.athensvoice.gr/site/%CF%83%CF%84%CE%AE%CE%BB%CE%B5%CF%82-web/%CF%86%CF%89%CF%84%CE%BF%CF%81%CE%BF%CE%BC%CE%AC%CE%BD%CF%84%CF%83%CE%BF