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/20141231010356/http://www.athensvoice.gr/site/culture/books/%CE%B4%CE%B9%CE%AE%CE%B3%CE%B7%CE%BC%CE%B1