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/20150128044607/http://www.athensvoice.gr/site/%CF%83%CF%84%CE%AE%CE%BB%CE%B5%CF%82-web/%CE%B4%CE%B9%CE%B1%CE%B3%CF%89%CE%BD%CE%B9%CF%83%CE%BC%CF%8C%CF%82