zackproser

The Twitter Hashtag Blaster enables your readers to send your content into Twitter conversations surrounding your target hashtag.
Do you run a humor website? Set your hashtag to #lol and start enjoying increased traffic from Twitter. Is your content about #football? #programming? #fashion? #politics? You can target any hashtag you like.
Once installed and activated, go to Settings -> Twitter Hashtag Blaster.
Here you can enter your target hashtag and choose whether the button should be small or large.

Twitter Hashtag Blaster

Add Twitter hashtag buttons at the end of every post, for any hashtag you want. Sends shortlinks to your articles into Twitter!

micahwave

Automatically creates a <a href="http://bit.ly" rel="nofollow ugc">bit.ly</a> url for each of your posts when they get published. To display the shortened url, simple use <a href="https://codex.wordpress.org/Function_Reference/wp_get_shortlink" rel="nofollow ugc">wp_get_shortlink</a> in your template file.
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Bitly URL Generator

Automatically creates a bit.ly url for each of your posts when they get published.

Twitter Hashtag Blaster vs Bitly URL Generator