Change from "Share this" to "Like"
I have removed the old "Share this" button, as it appeared not to work correctly, and causing pages to load slowly.
Instead, there is now the Facebook "Like" button, as seen above.
This will note the page in your Facebook log, if you use Facebook.
There are some advantages to using this system, such as being able to provide accurate location information.
If there are no problems, I shall also add in a facility for Twitter, the other popular social network.