Social-media companies have quickly become one of the hottest sectors to invest in. For those having trouble keeping up with the constant barrage of news items coming from these Internet companies, here's a quick recap of what you may have missed.

The following slideshow features several news items from companies including Facebook (META 1.54%), Alphabet's (GOOG 0.37%) (GOOGL 0.35%) Google, and Twitter (TWTR), along with a quick synopsis of what the news means for investors. Enjoy!