Horace Dediu, founder and author of market-intelligence blog Asymco.com, tracks technology trends for a living. A former business development executive at Nokia Corp., he's garnered a following discussing topics such as why Nokia's Symbian operating system lost ground and the continued rise of Apple.

Asymco.com has attracted more than three million views since launching in June, Mr. Dediu says. The site has also spawned a sister Chinese blog with simplified Chinese translations of Asymco posts.

"I...