Free to all candidates, the site has more space than on the official sample ballot and candidates can update info until shortly before the election. (The June ballot for San Diego County can be seen at http://forms.smartvoter.org/sv/ca/sd/.)
The other website, Project Vote Smart, includes a wealth of nonpartisan information on candidates for federal and state offices. In addition to candidates’ biographies and issue positions, you can find interest group ratings for candidates from a variety of organizations, statements made by the candidates, and voting records for incumbents. You can even look up their campaign finance records. Visit www.Vote-Smart.org for details.