Keyword Research pro is a keyword research tool with the following features:
Different sources of keywords adding up to billions of keywords. Google, Wordtracker, KeywordDiscovery, 7search, Ask.com and Miva.
Multi-language support allows you get keywords in 41 specific languages.
One click niche brainstorming to generate ideas.
LSI keyword suggestions based on Google search and Google sets.
Gets search engine competition data, monthly search count, pay-per click ads and CPC, calculates KEI (keyword effectiveness index) and R/S Ratio (Results to Searches ratio), and more.
Quick filtering system allows you to filter out your entire list in seconds by using a custom filtering criteria.
( By Keyword Research Tool - Keyword Research Pro Publisher )