Serena <b>Software</b> lays off 90 of 900 Facebook-using employees...

Serena &lt;b&gt;Software&lt;/b&gt; is a &lt;b&gt;software&lt;/b&gt; company whose &lt;b&gt;software&lt;/b&gt; other &lt;b&gt;software&lt;/b&gt; companies use to make &lt;b&gt;software&lt;/b&gt; â€" right, exactly, the kind of boring...