Here is a great device put out by the Washington Post. Have your students pick an issue (health care is probably the best one right now) and then select a month. The "POTUS (president of the US)" tracker will tell you what Obama has done that month from small meetings to large speeches. Then have the students tell you why he has gone where he has (swing senator on an issue, meeting w. majority leaders, etc.). At the beginning of the school year (my students won't start until Sept 7th), I will do one or two of them and as they learn more, they will have to do some as reinforcement of what we have learned. Here is a very detailed daily schedule for Obama.