[Les outils du référencement]

Enumeration
Google Count - uses Google API
Go Rank Density Check
Keyword Count
Textalyser
Word & Character Count **

Data Center Monitoring
Google Dance/Datacenter Monitor
Yooter - dance and algorithm changes

General
Google Dance/Datacenter Monitor
GoogleFight Marketleap
Search Engine Spider Simulator
Search Engine Simulator - spider viewer
Webmaster Tool Kit
Test redirections 302
Yooter - dance and algorithm changes

Keyword Density
KeywordDensity.com
Keyword Density Analyzer **
Keyword Density & Prominence **
Top Keyword and Phrase Analysis

Link Popularity / Backlink Analysis
Deal Link Check
Keyword Analysis Tool - Backlinks & #Pages
Link Popularity Analysis
Uptimebot - Popularity check
Similar Pages Checker

Ranking Check
No filter - Search and find your Google position without certain filters
CleverStat - Free Monitor for Google
Google Rankings
Keyword Ranking Tool another great Digital Point tool**
Yagoort Yet another Google rank test
Online Pagerank PR Tool
Proogle - Page Rank Tool
Quick Ranking by Keyword Check
Rank Analyzer **
Rank Where
Search Engine Ranker - checks in top 20 SE's
Yahoo Search Rankings

Search Term Suggestion Tool
ESpotting
Good Keywords- Free download
Google AdWord Keyword Suggestion Tool
Keyword Research Tool
WordTracker.com **
Overture Suggestion Tool
Add Me

SEO Check
Business Launcher **
Customer Focus Calculator
Web Page Analyzer