Studies of Web use during elections have focused mainly on the content of Web sites and on the major factors driving parties' and candidates' adoption of the technology. Evaluations of the electoral impact of Web campaigns have been more limited. This article examines the nature and extent of Web use by voters and parties in the 2007 Australian federal election, focusing particularly on the consequences of Web 2.0 campaigning for candidate vote share. The findings show differing levels of commitment to older and newer e-campaigning technology across parties and their supporters and significant electoral advantages are associated with minor parties candidates using Web 2.0 campaign tools. The results confirm existing studies' findings about the impact of Web campaigns on contemporary elections, but that these effects are moderated by the type of Web tools used and party using them. © Taylor & Francis Group, LLC.