Congressional Quarterly's Election Map, on CQPolitics.com allows readers to see the publication's projected Democrat vs. Republican breakdown for U.S. House and Senate seats, as well as for governors and the state-by-state results for the 2004 Presidential election. When readers click on a district, a new browser window detailing demographic information about the district, and its recent election history.

The New York Times offers separate pages laying out the Democratic and Republican primary schedules, but the Los Angeles Times offers a superior Primary Tracker that combines all the information in the NY Times' graphics, but in one easy-to-navigate page.  

LA Times' Primary Tracker

The LA Times' graphic includes both a timeline of primary schedules for both parties, as well as a U.S. map that has state-by-state details. The LA Times weighs the data points that are put on each state, instead of placing bullet points for each state's primary election on the appropriate date of the timeline. Larger circles are put in place of points for the primaries in larger states. This graphic system allows the readers to easily understand the impact of shared primary dates like February's "Super Tuesday."

The Washington Post’s Campaign Tracker allows readers to see where each candidate will be each day of the campaign. The Post's page uses a custom Map with a traditional list of candidate appearances. When a reader clicks a candidate's name, they are directed to a weekly schedule, with mapped to another Google Map, as well as an analysis of where the candidate is spending the most time and raising the most money.

Source: Online Journalism Review