The main concern about Web surveys is that inference is affected by nonrandom selection of web survey participants (selection bias). One approach to reduce selection bias is to use propensity scores and a parallel phone survey. This approach uses demographic and additional so-called webographic or lifestyle variables to balance observed differences between web survey respondents and phone survey respondents. Here we investigate some of the webographic questions used by Harris Interactive, a commercial company specializing in Web surveys. Our webographic questions include choice of activities such as reading, sports and traveling and perceptions about what would constitute a violation of privacy among others. We use data from an existing probability sample representative of the US 50+ population and their spouses (Health and Retirement Study) and a corresponding web survey.