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/20141230131201/http://www.athensvoice.gr/contributor/%CE%B1%CE%BD%CE%B1%CF%83%CF%84%CE%B1%CF%83%CE%AF%CE%B1-%CE%BA%CE%B1%CE%BC%CE%B2%CF%8D%CF%83%CE%B7