This is Brittany. I was a CMNS undergrad. I'm sending you this
because I think some of this year's seniors might be interested in the MATCH
Corps, the program I'm currently doing.  Basically, it's tutoring and
teaching at an inner-city school in Boston.  Typically after the year,
fellows go on to top grad schools in medicine, law, and the social sciences,
become full-time teachers in high-need schools, or get in education policy
and administration.  The application process is highly selective and the
demands of the program are intense, but it's been a really rewarding
experience so far.

All the info on the program can be found here:
http://www.matchschool.org/matchcorps/process.htm