www.abbreviations.com

Abbreviations.com is one of the best online directories and is a reliable source of reference for visitors across the world. With its huge network of reference websites and content partners, it is the world’s largest resource for acronyms, abbreviations, and initialisms.

• The site has a nice, user-friendly interface.
   
• It offers useful results to its users with its numerous entries on abbreviations, acronyms, definitions, quotes, and many more categories of content.
   
• The site claims to be the world’s largest and most comprehensive directory for acronyms and abbreviations on the Web.
   
• The site provides genuine content through its network of other resources and sites. There are several sites to explain various categories of content, such as one to provide definitions, one to explain expressions, one to convert a variety of unit measurements, and one to browse, search, rate, and translate quotes from various authors.
   
• Recently, a new site has been launched to search common phrases, casual expressions, and idioms.
   
• The complete network of sites is very comprehensive. All the entries have been classified under various categories, so that users can conveniently find what they are looking for.
   
• The site includes a wide variety of categories, including governmental, medicine, business, computing, and Web.
   
• Being the largest human-edited directory for acronyms and abbreviations on the Internet, this site provides its visitors useful results for their queries.

This site is best used to find new and relevant keywords for your marketing efforts – PPC, SEO, Article Marketing, etc.

After identifying keywords, use Google keyword tool to come up with even a greater list of keywords!

In addition, the site offers you free tools to download that let you interpret any acronym, anywhere with complete ease.