Don't waste your time seeking for those crisp-looking vector logotypes and social-media icons at various places. Here they are, gathered in one place, nicely optimised and made in consistent size. You'll find them useful, I'm sure.
The logotypes are a free addition as part of the Flatilicious icons collection that you can find it on my CreativeMarket shop: http://crtv.mk/bgb6
For more periodical freebies, also follow me on Twitter.