The #difference between #facebook #xing #linkedin + all the other "social networks" to !gnusocial or !diaspora is not just that they are #closed-source and they are "single islands" (just one installation) but also how the data is stored. Remember: #NSABook and co can easily sell your data because they keep it secret. Here on the #FLOSS social networks, we have a real network (more than one instance) and most dents are #public. Sure, you can write #private dents but that dent remains local then.