Using the same class more than once is ok, Mismatching tags can be a problem.
The about me widget has an opening <h1> tag, but no closing tag, that may be throwing every thing out.
Try this
CODE
<div class="widget-recent-entries widget-archives widget">
<h3 class="widget-header">About Me</h3>
<div class="widget-content">
<a href="http://www.avlon.com/president.html" target="_blank"><img src="http://www.dralisyed.com/dralisyed.jpg"></a><br/><br/>
<a href="http://www.avlon.com/president.html" target="_blank">Avlon Biography</a><br/>
<a href="http://www.youtube.com/user/dralisyed" target="_blank">YouTube - dralisyed</a><br/>
<a href="http://twitter.com/dralisyed" target="_blank">Twitter - dralisyed</a><br/>
<a href="http://www.slideshare.net/dralisyed" target="_blank">SlideShare - dralisyed</a>
</div>
</div>
and this
CODE
<div class="widget-recent-entries widget-archives widget">
<h3 class="widget-header">Links</h3>
<div class="widget-content">
<a href="http://www.theantihairslave.blogspot.com/" target="_blank">Anti Hair Slave</a><br/>
<a href="http://www.browngirlgumbo.blogspot.com/" target="_blank">Brown Girl Gumbo</a><br/>
<a href="http://coarsehair.blogspot.com/" target="_blank">Coarse Hair Diary</a><br/>
<a href="http://crown-n-glory.blogspot.com/" target="_blank">Crown & Glory</a><br/>
<a href="http://hairlicious.blogspot.com/" target="_blank">Hairlicious</a><br/>
<a href="http://hairlyobsessed.blogspot.com/" target="_blank">Hairly Obsessed</a><br/>
<a href="http://healthytextures.typepad.com/" target="_blank">Healthy Textures</a><br/>
<a href="http://www.keepitsimplesista.blogspot.com/" target="_blank">Keep It Simple Sista (KISS)</a><br/>
<a href="http://maneandchic.blogspot.com/" target="_blank">Mane & Chic</a><br/>
<a href="http://www.relaxedhairhealth.blogspot.com/" target="_blank">Relaxed Hair Health</a><br/>
<a href="http://www.tiawilliams.net/blog/" target="_blank">Shake Your Beauty</a><br/>
</div>
</div>