Facebook’s on a quest towards challenging Twitter by adding hashtag support to its mobile site and launching related hashtags. Now, when you click or search for a hashtag, the results page will show other hashtags often posted at the same time.
Similarly to Twitter’s hashtags, #-preceded words can be converted into hyperlinks users can click on to see mentions by friends and pages. Users can also search for hashtags to bring up a stream of mentions.
Related hashtags, also present on Twitter, will make sure you don’t miss parallel conversations.
Facebook Hashtag Functionality gives users the ability to search for specific hashtags via the Facebook search bar, to click on hashtags that originate from other services, like Instagram, to create new posts from within the hashtag feed and search results, and to add hashtags to Facebook ads you’re running.
and calculate your budget and timescale