Keyword Research Tools for SEO and SEM

Author: Pravin Shivarkar

Keyword Research is a vital part in Organic as well as Paid Search Optimization.
Basically you capitalize on those keywords which are searched on a large volume and still have lower CPC (Cost per Click). Skill is finding relevant keywords for your/ client's site with less competition with least CPC for getting maximum ROI (Return on Investment).
Webmasters are now seriously concerned about these keywords for Adwords and Adsense too.

Searching for Top keywords for volume and popularity?
There are many tools available:
1) Google Adwords Keyword Tool with Traffic Estimator (for Google only)
2) KeywordDiscovery Online Tool
3) WordTracker Interface.
4) Overture Inventory Tool
5) Google Zeitgeist Monthly searched keywords

Each of those use a different formula ( most of them gather from top search engines)

You can get a clear view from Google Zeitgeist about the last month's most popular keywords searched. 
Top Queries at Google  in India

These are the top search words ( or keywords in terms of SEO professionals) people are searching for on the World #1 Search Engine Google. June Shows users interest in Gadgets, Bollywood personalities and Banking with Technology.

India - Top Gaining Queries: June 2007

- reliance data card
- national institute of technology
- raveena tandon
- jordan
- bob marley
- amul
- allahabad
- mallika sheravat
- airdecan
- Shakira
- ashwariya
- tantra
- coconut
- dhoom3
- 3gp player