Hashtags are now an integral part of social media - there are 1000's of different ones in use across Twitter, Instagram, Facebook, Tumblr, Google and Pinterest. They have become a key part of how we use and engage with social media so if you are looking to promote your blog, brand or business, it's important to understand how to utilise them. Why you should use hashtags In their basic form hashtags are simply keywords denoted by the use of the # symbol. They are used across social ...