If you are interested in logo design then you should check out this piece from the folks at Cheap Roller Banners in the UK which takes a look at how the logos for some of the most popular social networks have evolved over time. View the logo history for Facebook, Instagram, Twitter, YouTube and others.
[Click here for full size version]
Irma Wallace
Co-founder and Vice President of SearchRank, responsible for many of the day to day operations of the company. She is also founder of The Arizona Builders' Zone, a construction / home improvement portal.