• If you’re promoting something you’ve written via Twitter, be sure to add all the relevant hash tags you can think that might apply (and that fit within the 140 characters). That will get the post in front of potentially thousands of people who might be interested.
  • Don’t assume that all hash tags will work. You want to search on a hash tag before you use it, to be sure that it’s in general use. On the Twitter site, point your browser to search.twitter.com and type in the hash tag (remembering the # in front) and see what comes up. If nothing does, you know it doesn’t make sense to waste the characters on that one. If you’re using a software app like TweetDeck, then take the appropriate steps to search on the hash tag.
  • When you’ve found a hash tag that gets attention, start going through the posts, not only to be sure that you’re directing your message appropriately, but to see what other hash tags people use in their messages. This will generally suggest other tags that you might consider yourself.
  • If the topics you cover vary, then keep a spreadsheet or word processing document with potential tags to use. If you’re working in few enough predictable areas, group them together, so you have the hash tags for a parenting story or the ones for your pieces on scuba diving.
  • Check out hashtags.org. You can look at trends in hash tag use, see who is using them, and even find a directory of hash tags. The trend info is not only useful for marketing, but for looking at the state of the virtual zeitgeist, which then becomes fodder for topics you might pitch or for evidence to an editor that something is cooking and that an article on the topic might be just the thing to assign.
  • Confused about exactly what a tag is supposed to mean? You can use Tagalus or Hashtag Reference might help. They let you search to see if there’s a definition that’s been assigned to the tag and, if there isn’t one, you can create one.
  • Be smart about how you incorporate hash tags. If you’re using the term in your post, include the hash there instead of repeating the term and wasting characters. For example, you could write “read a good #book” instead of “read a good book #book”.