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/20150128121950/http://www.athensvoice.gr/site/design-home/%CE%B1%CF%81%CF%87%CE%B9%CF%84%CE%B5%CE%BA%CF%84%CE%BF%CE%BD%CE%B9%CE%BA%CE%B7