You can search for posts from certain accounts, using particular hashtags, or specific words or phrases on the advanced search page.

You can search these tweets using keywords, date, place hashtags and more Advanced search is available when you’re logged in to twitter.com.

Twitter, much like Instagram, makes good use of hashtags in order to categorize posts, although arguably, Instagram relies on hashtags a lot more heavily (via ideamtg).

Just as optimized copy is critical to a well-written post or tweet, determining the proper number of hashtags, as well as knowing what hashtags to use, is just as important.

Hashtags are everywhere — except for Facebook. You'll find the keywords, which begin with the "#" symbol and allow you to search for topics, on Twitter, Instagram, Tumblr and video app Vine, but ...