Hashtags are words or phrases with # at the beginning and no spaces between words (for example, #iamsotiredof is an example of a hashtag). They were originally created by Twitter users as ways to organize Tweets by topic so you could view the entire stream of messages by various users who include this hashtag in their Tweets.
How Are Hashtags Used?
1) Ongoing Topics:
Tag a post with a hashtag such as #seo so people will know that your post is about search engine optimization. People who filter for hashtags or do searches on a hashtag can track who’s tweeting about that topic. This helps the Tweeter (who put #seo in their Tweet) to be found. Click here for an example – #seo hashtag at hashtags.org.
2) Twitter Conversations:
They are also used for short term Twitter conversations. One person can declare a hashtag and people include that in their questions or comments. All of the Tweets with that hashtag can be tracked and responded to. A tool to track conversations in real time is: TweetChat
-> Click here for a detailed post on Twitter Chats.
3) News, Gossip or World Events:
To communicate news about a pop star, a world event (Egypt, Osama Bin Laden) or other major news items, people will find the hashtag being used (or create one) and attach that to posts in order to be included in the stream of information about that event. People use tools such as What the Trend, Twemes.com or Hashtags.org amongst others to find hashtags. Below are a portion of a typical 30 day ranking from What the Trend:

4) Twitter Hashtag Memes:
People (including celebrities or late night TV hosts) can create a topic such as #thingsiscrewedup (things I screwed up) and people will Tweet a message including the hashtag and a response to the theme of the hashtag. A meme is a trend or concept that spreads on the Internet.
Use What The Trend to see trending topics (that use hashtags) on Twitter:
26 must-know Hashtags for Marketers & Bloggers
(click on the hashtags to see recent trends and Tweets from hashtag.org)
Blogging / Content Marketing:
#blog – identifying a blogger or post about a blogger
#blogger – see above
#article – an article
#articles – see above
#tips – a tips article or video
#diy – do-it-yourself
#news – news item
Internet and Social Media:
#internet – about the internet
#socialmedia – social media
#fb – about facebook
#facebook – about Facebook
#linkedin – about Linked In
#twitter – about Twitter
Types of Marketing:
#seo – search engine optimzation
#sem – search engine marketing (e.g. pay-per-click marketing, seo)
#ppc – pay-per-click marketing such as Google Adwords or Microsoft Adcenter
#ecommerce – online commerce, ecommerce
#adwords – Google Adwords
#smm – social media marketing
#mobile – about mobile or mobile marketing
Contests/Giveaways:
#giveaways – to get attention for a giveaway
#giveaway – see above
#contest – to announce a contest
Types of business:
#business – about business
#smallbiz – pertaining to small business
#corporate – about corporations
Marketing-specific topics:
#marketing – about marketing
#logo – about a logo (or need for a logo, e.g. combined with #freelance)
#identity – brand identity
#branding – about branding
#design – about design
Jobs:
#job – about job (e.g. job opening)
#jobs – see above
#freelance – about or looking for freelancer
#webdesign – about web design
#IT – about IT
What hashtags do you use? How do you like to use hashtags? Leave your thoughts in the comments below…
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Image credit: http://www.flickr.com/photos/jdhancock/3521006248/in/set-72157618524893239














Great list of base hashtags! I’ve been looking for a site that will give you the most popular overall for different niches – What the Trend sounds like a good place to start that search.
Kristi Hines recently posted..What to Expect When Moving WordPress to New Hosting
Thanks Kristi! Yes, What the Trend is a good place to start, in addition to running searches on Hashtags.org for topics of interest.
Twitter: ileane
says:
Hi Tom, I love using hashtags! They come in handy for lots of searches and I also use them to create Paper.li’s when I’m researching a topic.
I use #blogging #wordpress #fashion #jobs #engineering #engineers #science #STEM #safety and a few others, depending upon which Twitter account I’m working with.
I need to look into some new ones so thanks for the resources!
Ileane recently posted..Paperli Lets You Control Your Twitter News Daily
Ileane, thanks for the additions. I’m vowing to get better at using them more regularly so I created the handy cheat sheet in this post!
Hey Tom, I love using (and even making up) hashtags! Here are some good ones for bloggers I’ve found much success with (in terms of getting traffic to blog posts): #blogtips, #blogtribe and #blogboost. I also attend a few twitter chats and using those hashtags appropriately help as well: i.e. #smmanners.
Great list to share with my network!
Kesha recently posted..Thinking Sideways- Technique for Finding Little Known Keywords
Kesha – thanks for the additions and I’ll have to check out the ones you posted here!
Great post. I will start using more #hashtags. Right now the main ways I am using them is for events or conferences to connect with attendees. I also like to use them with Tweetchat when I do a teleseminar or online event.
Thanks Stacey – yes, that’s a great addition to the uses of hashtags on Twitter