There was a study a couple years ago that showed people are less likely to click on tweets with<span></span> hashtags in them. But I think most people agree that well-used ones are helpful. One, MAYBE two per tweet. <br><br>On Thursday, October 29, 2015, Joe Sutherland &lt;<a href="mailto:jsutherland@wikimedia.org">jsutherland@wikimedia.org</a>&gt; wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">I&#39;m by no means an expert, but I&#39;d probably recommend a maximum of two hashtags in a tweet. I think the vague ones don&#39;t work as well as the more specific ones here. But Jeff is your guy for these kinds of things :)<div><br></div><div>Joe</div></div><div class="gmail_extra"><br><div class="gmail_quote">On 29 October 2015 at 04:11, Pine W <span dir="ltr">&lt;<a href="javascript:_e(%7B%7D,&#39;cvml&#39;,&#39;wiki.pine@gmail.com&#39;);" target="_blank">wiki.pine@gmail.com</a>&gt;</span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><p dir="ltr">In general, are there optimum numbers and kinds of hashtags? I imagine that there is research on this somewhere. (Agreed that hashtag soup causes cognitive load which may cause people to skip trying to understand what&#39;s being said.)</p><span><font color="#888888">
<p dir="ltr">Pine</p>
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<br></blockquote></div><br><br clear="all"><div><br></div>-- <br><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><span style="color:rgb(0,0,0)"><span style="font-family:arial,helvetica,sans-serif"><font size="2"><b><span style="background-color:rgb(255,255,255)">Joe Sutherland</span></b><br>Communications Intern [remote]<br></font></span></span><div><span style="color:rgb(0,0,0)"><span style="font-family:arial,helvetica,sans-serif"><font size="2"><span style="color:rgb(102,102,102)">m: +44 (0) 7722 916 433 | t: @<a href="http://twitter.com/jrbsu" target="_blank">jrbsu</a>  | w: <a href="https://meta.wikimedia.org/wiki/User:JSutherland_(WMF)" target="_blank">JSutherland</a></span><br></font></span></span></div></div></div></div></div></div></div>
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</blockquote><br><br>-- <br><div dir="ltr"><div style="font-size:small">Jeff Elder</div><div style="font-size:small">Digital communications manager</div><div style="font-size:small">Wikimedia Foundation</div><div style="font-size:small"><a href="tel:704-650-4130" value="+17046504130" style="color:rgb(17,85,204)" target="_blank">704-650-4130</a> </div><div style="font-size:small"><a href="https://twitter.com/JeffElder" style="color:rgb(17,85,204)" target="_blank">@jeffelder</a></div><div style="font-size:small"><a href="https://twitter.com/wikipedia" style="color:rgb(17,85,204)" target="_blank">@wikipedia</a></div><div style="font-size:small"><a href="https://blog.wikimedia.org/" style="color:rgb(17,85,204)" target="_blank">The Wikimedia blog</a></div></div><br>