Who’s On Track For The Nomination? Check out this resource (projects.fivethirtyeight.com)

You politico fans will love this website.

Who’s On Track For The Nomination? Tracking a candidate’s progress requires more than straight delegate counts. We’ve estimated how many delegates each candidate would need in each primary contest to win the nomination. See who’s on track and who’s falling behind. http://projects.fivethirtyeight.com/election-2016/delegate-targets/republicans/ http://projects.fivethirtyeight.com/election-2016/delegate-targets/democrats/

Also, here is a straightforward tracking of the current delegate counts for each candidate in dem and repub parties.
http://www.politico.com/2016-election/results/delegate-count-tracker