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/20141231020835/http://www.athensvoice.gr/contributor/%CE%B1%CE%B3%CE%B3%CE%B5%CE%BB%CE%B9%CE%BA%CE%AE-%CE%BC%CF%80%CE%B9%CF%81%CE%BC%CF%80%CE%AF%CE%BB%CE%B7