The Ridiculously Exhaustive Social Media Dimensions Blueprint [INFOGRAPHIC]

[Blue Wren]

Just in case it hasn't been done yet.

Source

Social Media Dimensions Quick Reference
Facebook Dimensions

Facebook Cover photo: 851 x 315
Facebook Profile photo: 180 x 180

Twitter Dimensions

Twitter Header image: 520 x 260
Twitter Profile image: 81 x 81

Google+ Dimensions [updated 05.15.13]

Google+ Cover photo: 2120 x 1192
Google+ Profile photo: 270 x 270

LinkedIN Dimensions

LinkedIN Cover photo: 646 x 220
LinkedIN Profile photo: 100 x 60

Pinterest Dimensions

Pinterest Profile Photo: 160 x 165

Instagram Dimensions

Instagram Profile Photo: 110 x 110

YouTube Dimensions [updated 05.15.13]

YouTube Cover Art: 2560 x 1440
YouTube Cover Art Safe Area: 1546 x 423