Data mining, data visualization and KDD

A Beautiful WWW, Information retrieval and visualization, data mining, AI

Coremark Analytics, Web Analytics Blog

Data Mining and Predictive Analytics, Dean Abbott, Data mining and preprocessing, predictive analytics, visualization and modeling

Data Mining Research, Sandro Saitta

Data Mining: Text Mining, Visualization and Social Media, Matthew Hurst

Data Sciences Analytics, John Aitchison

Edward Tufte, Edward Tufte, information design and presentation practices

Kdnuggets, Gregory Piatetsky-Shapiro, Data, web, text mining

Machine Learning (Theory), John Langford, Drew Bagnell, Sanjoy Dasgupta, Hal Daume, and Alex Gray, Machine learning and learning theory

Many Eyes, Martin Wattenberg and others from IBM's Collaborative User Experience research group, Data sets and visualization

Mashable, Pete Cashmore, social networking

MineThatData Blog, Kevin Hillstrom, Multichannel forensics, database, catalog and online marketing

Processing Blogs, Tom Carden, Aggregating processing blogs

Random Etc., Tom Carden, Mapping and tagged maps

Search Engine Land, Danny Sullivan, Chris Sherman, Barry Schwartz, et al

(Semantic) Similarity-Blog, Krzysztof Janowicz, Semantic similarity measurement theory and application

Tasty Data Goodies, Swivel

Text Technologies, Curt Monash

Visual Complexity, Manuel Lima

Gordon Housworth