The other day, I was looking for add-ons for Thunderbird and found an article about Rapleaf. In short, if you write me an email, the addon shows me which social networks you belong to. Comes in handy, but the database is not big enough.
The Scale of the Universe – if you ever wanted to put everything in perspective
(hat tip to ScienceAlert)
Se·man·te·rei. Substantiv, f. Ablenkende Debatte über Wortbedeutungen in Sachdiskussionen