Tuesday, 26 February 2013

The surface Web

The surface Web (also known as the visible Web or indexable Web) is that portion of the World Wide Web that is indexable by conventional search engines. The part of the Web that is not reachable this way is called the Deep Web. Search engines construct a database of the Web by using programs called spiders or Web crawlers that begin with a list of known Web pages. The spider gets a copy of each page and indexes it, storing useful information that will let the page be quickly retrieved again later. Any hyperlinks to new pages are added to the list of pages to be crawled. Eventually all reachable pages are indexed, unless the spider runs out of time or disk space. The collection of reachable pages defines the Surface Web.

For various reasons (e.g., the Robots Exclusion Standard, links generated by JavaScript and Flash, password-protection) some pages cannot be reached by the spider. These 'invisible' pages are referred to as the Deep Web. A 2005 study queried the Google, MSN, Yahoo!, and Ask Jeeves search engines with search terms from 75 different languages and determined that there were over 11.5 billion web pages in the publicly indexable Web as of January 2005.As of June 2008, the indexed web contains at least 63 billion pages.

Thursday, 26 July 2012

America’s Birthday 2012

I love America and not a day goes by that I’m not grateful for having been born here. Every 4th of July the sky lights up with beautiful fireworks and my neighborhood is no exception – tonight it was quite amazing. The photographs turned out nice, and these three more unusual ones were my favorites. Land of the free…Happy Birthday America!

Friday, 2 September 2011

Under the Surface

Under the Surface is the debut album from Norwegian singer-songwriter Marit Larsen which was released on March 6, 2006. All but three of the songs on the album were written solely by Marit herself. The album went gold in Norway after selling more than 20,000 copies in less than 3 weeks. The album debuted and peaked at No. 3 on the sales chart in Norway. The album spent 52 weeks on VG Topp 40 and 62 weeks on VG Topp 30 Norsk and so far, it has sold more than 46,000 copies and has gone platinum.