These are some of the websites through our MG program:

in general:
http://trumbull.osu.edu/hort/hort.htm

for the newsletter:
http://trumbull.osu.edu/hort/hortnews.htm

this link is from state coordinator Pam and lists events around the state http://mastergardener.osu.edu/ (Click on calendar on the left side)

I'll be adding more and creating a sidebar to carry them asap.