What are some alternatives?
When comparing Yo and alloblak, you can also consider the following products
Briar - Secure messaging, anywhere
Facebook - Connect with friends, family and other people you know. Share photos and videos, send messages and get updates.
Twitter - Connect with your friends and other fascinating people. Get in-the-moment updates on the things that interest you. And watch events unfold, in real time, from every angle.
Padlet Briefcase - Padlet Briefcase provides a virtual canvas for team collaboration that can be used for venn diagram, discussion board or for a business plan
Openbook - Honest, open-source, privacy-friendly & awesome social network.
Socialscribe - Socialscribe is a community and based Social Media platform