Keywordcount.com - Provides an analysis tool which counts, ranks, and compiles the most-used words on a web page, optionally compares these results to that of another page, and gives multiple options as to what content is to be examined.

Search Engine World Keyword Analyzer - Helps analyze what search engines see for your webpage's keyword density. Has word filters and can ignore certain word lengths.

Submit Corner Keyword Thesaurus - Helps you find a list of related keywords based on the most popular, combined suggestions returned from Hotbot, About, Altavista and Metacrawler.

Keyword Comparison Tool - Helps determine which keywords or keyword phrases are more popular in a given search engine.

JimTools Keyword Analyzer - Analyzes a webpage to determine which words and phrases are most used with the option to ignore meta tags or comment tags.

Keyword Generator - Helps you come up with a list of appropriate keywords to put in your meta tags. Queries search engines for a list of related keywords.

Keyword City - Provides listings of popular single keyword and keyword combinations arranged by category.

Lycos 50 - Top 50 keyword searches in Lycos that includes lists of people, places and things. Updated weekly.

WordTracker Keyword Tool - Compiled database of keywords that people search for. Tells how often people search for the term and how many competing sites use that same term on a search engine. Helps measure keyword effectiveness.

Wordspot Keyword Report - Weekly top 200 keyword searches emailed to your inbox upon sign-up. Helps identify search trends.

Overture Keyword Interrogator - Helps in finding lowcost Overture keywords to purchase. Can display 5 to 50 related suggestions, and 5 to 40 search rankings.

Keyword Bid Optimizer - Checks and manages existing Overture keyword bids. Shows the first 20 bid positions for individual Overture keywords including current bid amounts.

Interactive Keyword Tutorial - Uses javascripting to compute results based on a series of questions to help determine what the best keywords are to use on a webpage.

Google Zeitgeist - Weekly search trends and a list of the most frequently misspelled searches.

Yahoo! Buzz Index - Displays the keyword searches data collected from Yahoo! search log files. Updated each weekday, it shows the percentage of users searching for a specific subject on a given day.

PositionAgent Keyword Ranking Tool - Checks Altavista, Google, MSN, Yahoo, and Yahoo Web Page results for site ranking when you type in an associated keyword or keyword phrase.

JimTools Search Engine Position Analyzer - Checks website ranking on major U.S. and U.K. search engines when you type in a keyword associated with a site.

Promote4Less Overture Bid Manager Tool - Free bid monitoring service for 30 days when you register. Monitors keyword term bidding in Overture. Collects, organizes, and interprets the bidding data.

RankPilot - Checks the rank of your site within the major search engines for given keywords. Includes timeout and search depth feature.

Lexical FreeNet - Toolbox that allows you to search for rhymes and relationships between words and concepts.

Keyword Density Analyzer - Free web based word depth and density analyzer.

Searchspell Typo - Generates a meta keyword tag with commonly misspelled variations of your queried keyword.

Ranks.nl Keywords Tool - Checks keyword density, prominence and placement. It can show headers and source, keywords in page elements, outgoing links and filtered words.

Position Guardian - A free automated bid monitoring service that protects your pay-per-click search engine ranking and allows you to bid less for the same position.

WordCounter - Ranks the most frequently used words in any given body of text. Filters out results to include or exclude small words, to use only root words or allow stemming, and to list 25, 50, or 100 words in order.

MetaCrawler Keyword Searches - Displays keywords which people are currently searching for in Metacrawler. The page refreshes every 15 seconds and has a filtered and non-filtered sample for you to choose from.

Web Traffic Keyword Tool - Free keyword generator that analyses any web page to provide a list of keywords. Multiple options to refine your list such as limiting to single words, ignoring case sensitivity, inclusion of image alt tags, and more.

AltaVista Search Trends - Shows the top gaining and declining queries for a given week, and popular image, video, and news searches in a given month on AltaVista and its international sites.

Site Cook's Search Engine Optimization Tool - Check the status of a site in selected search engines and check individual pages for keyword density. Results in about 10 seconds.

MySEO.com web based keyword analysis - Analyses a webpage to find key word phrase densities. Includes a default stop word list in final analysis.

OmniSpy - A live view of the past ten searches performed on OmniCrawler.

PromotionWorld's Search Engine Position Analyzer - Option to only check if a URL is listed on the major engines or what rank the site is for particular keywords. Searches ranks on AltaVista, Excite, Hotbot, Lycos, WebCrawler, and Yahoo!

Keyword Harvester - Queries AltaVista and displays related top keyword searches for that given keyword.

Overture Search Term Suggestion Tool - Displays how many times a certain keyword was searched for in a given month. Shows all related searches for the entered keyword.