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/20141118063308/http://www.athensvoice.gr/contributor/%CE%B4%CE%AE%CE%BC%CE%B7%CF%84%CF%81%CE%B1-%CE%B3%CE%BA%CF%81%CE%BF%CF%85%CF%82