http://jethrocks.blog.friendster.com/2007/02/google-docs-spreadsheets-vs-microsoft-office/ Latest, gadgets, technologies and life hacks. An apparent change in the direction of an object, caused by a change in observational position or point of view that provides a new line of sight. Tue, 29 Dec 2009 11:45:40 +0000 http://wordpress.org/?v=2.6.2