Interesting weekend events

As always, on Monday, a short selection of what you could miss over the weekend.

Another portion of personnel changes in the past week.

Slack is still growing at a fantastic pace .

Megaphone counted threats .
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Y Combinator will test the idea of unconditional income .

A vacation does not help to relax during exhausting work.

Google closes Picasa .

A complete description of the approaches to the algorithms for calculating unit bits.

Do not forget - this week 6 working days!