In the 9.4.1 release of Blackbaud Sphere a new Social Login feature was added, which gives participants the opportunity to register for an event using their social media logins, like Facebook, Google, and Twitter.  The ability to post to Facebook and Twitter through the Participant HQ is now directly tied to this feature.  To enable the Social Login features, as well as the ability to post to Facebook and Twitter in the Participant HQ, please do the following:

1. Go to Communities > Special Events > Friends Asking Friends > Kintera Thon
2. Hover over your event and click Website Info
3. Click Website Features
4. Scroll down to the "Login" section
5. Mark the radio button for "Display Sphere standard and social media login options"
6. Click Save
7. Go back to the Webinfo Checklist and click Update Your Event Now

The next time a participant logs into their Headquarters, they should now see this option on the very first page they come to.  These options are no longer available in the Tools tab like they used to be.