Richard Archambault on "[Plugin: Jetpack by WordPress.com] Like button stuck on "Loading..""

I see a javascript error on your site when I load an individual post:

Uncaught null : https://apis.google.com/_/scs/apps-static/_/js/k=oz.gapi.en.FyR31wOF2Ak.O/m=client,plusone/rt=j/sv=1/d=1/ed=1/am=IQ/rs=AItRSTOIUmAmPDko7N86fGXIlv0wnS5eVA/cb=gapi.loaded_0

The Like button lodaed fine for me, but js errors of this type can cause problems like you've described. Other than Jetpack, are you using any other Google+ related plugins?