in your code. UL starts the unordered (bullet) list. Li seperates the items. You start with an Li then add a UL and then list using Li. This results in that extra bullet. Basically you put an unordered list inside a list item.
Change this: <li id="linkcat-1"><h2>Additional Blogs I Read</h2>
<ul>
<li><a href="http://www.soldiersperspective.us/">A Soldier's Perspective</a></li>
<li><a href="http://www.momisnutz.blogspot.com/">Why Are These Kids Following Me?? Who Are They Calling Mom??</a></li>
</ul>
</li>
to this
<ul id="linkcat-1"><h2>Additional Blogs I Read</h2>
<li><a href="http://www.soldiersperspective.us/">A Soldier's Perspective</a></li>
<li><a href="http://www.momisnutz.blogspot.com/">Why Are These Kids Following Me?? Who Are They Calling Mom??</a></li>
</ul>