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/20141223235416/http://www.athensvoice.gr/site/video-gallery/%CE%B1%CF%83%CF%84%CE%B9%CE%BA%CE%AC-%CE%BC%CE%BF%CE%BD%CF%8C%CF%80%CF%81%CE%B1%CE%BA%CF%84%CE%B1