13. Google Advanced Search [Site:countrycode] restricts results to a country (two letter country codes) [Filetype:] retrieves only specified formats [related:] lists web pages that are "similar" to a specified web page. [after:] modified after a given date e.g. after:DD/MM/AAAA [before:] modified before a given date e.g. before:DD/MM/AAAA
14. Google Advanced Search [[allintitle:] restricts the results to those with all of the query words in the title. [intitle:] restricts the results to documents containing that word in the title. [define:] provides a definition of words gathered from various online sources.
16. Targeted Searches – Discussions lists A google targeted search for discussions related to a particular topic
17. Language Search and Tools Search for content in different languages and get it served in your preferred language: http://translate.google.com Translated search: http://www.google.com/language_tools