Juan Carlos PerezAssistant News Editor, IDG News Service

Juan Carlos Perez covers e-commerce, Google, web-application development, and cloud applications for the IDG News Service.

updatedTwitter clamps down on client apps

Google trots out Gmail feature to auto-label

Warner Bros. tests Facebook movie rentals

Developers like Tweet Button, want better analytics

Google to let Apps customers buy extra storage for Docs

Google updates Social Search

Google payment system for publishers rivals Apple's

Report: Privacy worries many Facebook, Google users

Study: Internet heavily used for seeking health info