I just got this notice that Social Warefare is on sale today. Depending on what type of license you buy it's 30/40/50 percent off. See http://schoolofpodcasting.com/socialwarfare
Social warfare is my favorite plugin as it lets you DICTATE what image is used if someone shares your post. So if I have Libsyn put a link to my website automatically, I know the right image is going to show. If someone shares my post on twitter, I know what image is going to show. Pinterest? Well, you get the idea. There is much more to it than that (you can easily make "Click to tweet" links and much more.
I just upgraded to a multi-site license. I normally don't send out emails like this, but this plugin rarely goes on sale. I am using it on the School of Podcasting and now I'll be using it on all my sites. A single license starts at $29/year
See http://schoolofpodcasting.com/socialwarfare
Dave Jackson
Podcast Consultant, Speaker, Author
www.schoolofpodcasting.com