The Pew Research Center has started providing raw survey data that they collect from their Internet and American Life Project on their new Data Sets page. You can search by date or topic for surveys they’ve done back to 2003. Recent surveys include: The Social Side of the Internet, Purchasing Content Online, Health Tracking, and Cell Phone Use.
This is primarily raw data – people who want to do number crunching can download the data in SPSS or CSV format. This is survey data – variables are provided for weighting the data for use in analysis and for estimating total populations. Summary tables and the survey questionnaire are available in Word format.