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/20150121064525/http://www.athensvoice.gr/article/%CE%B5%CE%B9%CE%B4%CE%AE%CF%83%CE%B5%CE%B9%CF%82/%CF%84%CE%BF-%CF%80%CF%81%CF%8E%CF%84%CE%BF-%CF%84%CF%81%CE%BF%CE%BB%CE%AC%CF%81%CE%B9%CF%83%CE%BC%CE%B1-%CE%BC%CE%B5-%CF%84%CE%BF-%CF%83%CE%B5%CE%BE-%CF%84%CE%BF%CF%85-%CF%83%CE%B1%CE%BC%CE%B1%CF%81%CE%AC-video