@conference {barash:wsm09, title = {Distinguishing Knowledge vs Social Capital in Social Media with Roles and Context}, booktitle = {International Conference on Weblogs and Social Media}, year = {2009}, month = {May}, author = {Barash, Vladimir and Smith, Marc and Lise Getoor and Welser, Howard} } @conference {smith:cikm07-ssm, title = {Leveraging Social Context for Searching Social Media}, booktitle = {CIKM Workshop on Search in Social Media}, year = {2008}, author = {Smith, Marc and Barash, Vladimir and Lise Getoor and Lauw, Hady} }