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/20160108073655/http://www.telegraph.co.uk/expat/expatfeedback/11677457/Expat-letters-If-were-forced-to-return-it-will-cost-the-UK.html