Since connections have a very strict meaning on Blender Network (see section above), we have added this new way to demonstrate anonymous appreciation for other’s work, without having to connect as a professional relation. Only members can show appreciation, and it is and will always be anonymous. To express your appreciation for someone else's work, go to his/her profile page. At the top of the right sidebar you will find a "thumbs-up"-button, similar to Facebook's "like"-button. Click on it, and it's done!