Here is the PowerPoint stack for my presentation on Automated Keyword Research in the Organic Keyword Research panel at 2007 WebmasterWorld conference in Las Vegas.

Search Ranking Acquisition:

Anonymizer Web Harvesting Proxy Service

Yahoo Search API

Windows Live Search API

Google SOAP Search API tombstone and function reference for legacy API key holders

Keyword Search Volume Estimations:

KeywordDiscovery API

WordTracker API

WordsFinder Traffic Estimator API

Google Trends API coming soon

Microsoft adCenter Keyword Research API beta signup email

Search Term Extraction:

Yahoo Term Extraction API and PHP tutorial

WordsFinder Keyword Extractor API

ClickTracks Pro 6+ Reporting API

Average Click-Thru Rate (CTR) of Search Engine Result Pages (SERP’s):

Cornell University Eye-Tracking Study

EyeTools heat map study of Google SERP

CTR analysis of leaked AOL search database