HubSpot has released the Social Media Holiday Calendar for 2018. The calendar is aimed at helping marketers plan for trending holidays in this year.The following video explains the Social Media Holiday Calendar in detail.Sophia Bernazzani says, “Whether it’s International Cat Day, Pizza Day, or Talk Like a Pirate Day, it seems like almost every day, the internet is celebrating a holiday.Whenever I log onto Twitter, I quickly scan what’s trending on the left-hand side of the screen. Have you ever had this experience — when you see an obscure holiday or observance day... [...]