[K12OSN] Crazy Spam in my yum update

[Carl Keil <carl snarlnet com>]

Does anyone have any idea why I'm getting this when I run 'yum update'? 
Both my k12ltsp boxes are doing it.
And what can/should I do about it? 
Yum is wonderful, mysterious and terrifying to me. 
What follows is approximately one quarter (hopefully representative) of 
the output I get when I run 'yum update' from the command line.

Thanks for any ideas.

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~


//var/cache/yum/macromedia/repomd.xml:327: parser error : Opening and 
ending tag mismatch: td line 309 and tr
             </tr>
                  ^
//var/cache/yum/macromedia/repomd.xml:328: parser error : Opening and 
ending tag mismatch: tr line 308 and table
           </table>
                   ^
//var/cache/yum/macromedia/repomd.xml:332: parser error : EntityRef: 
expecting ';'
pen('https://www.godaddy.com/gdshop/jump_pages/icann_dry.asp?isc=gppg0095&domain
                                                                              
^
//var/cache/yum/macromedia/repomd.xml:332: parser error : EntityRef: 
expecting ';'
com/gdshop/jump_pages/icann_dry.asp?isc=gppg0095&domain=macromedia.mplug.org&app
                                                                              
^
//var/cache/yum/macromedia/repomd.xml:336: parser error : Opening and 
ending tag mismatch: td line 189 and table
           </table>
                   ^
//var/cache/yum/macromedia/repomd.xml:346: parser error : Opening and 
ending tag mismatch: img line 346 and td
ages-pw.secureserver.net/images/061703/spc_trans.gif" border="0" 
height="9"></td
                                                                              
^
//var/cache/yum/macromedia/repomd.xml:347: parser error : Opening and 
ending tag mismatch: td line 346 and tr
             </tr>
                  ^
//var/cache/yum/macromedia/repomd.xml:349: parser error : EntityRef: 
expecting ';'
><a 
href="https://www.godaddy.com/gdshop/hosting/landing.asp?isc=GPPG1753&domain
                                                                              
^
//var/cache/yum/macromedia/repomd.xml:349: parser error : Opening and 
ending tag mismatch: img line 349 and a
server.net/images/061703/img_ad_hosting_parked_1.gif" border="0" 
vspace="3"></a>
                                                                              
^
//var/cache/yum/macromedia/repomd.xml:362: parser error : 
xmlParseEntityRef: no name
size:12px;font-weight:normal;color: #000000;text-align:left;">Generous 
Storage &
                                                                              
^
//var/cache/yum/macromedia/repomd.xml:374: parser error : EntityRef: 
expecting ';'
<a 
href="https://www.godaddy.com/gdshop/hosting/landing.asp?isc=GPPG1755&domain
                                                                              
^
//var/cache/yum/macromedia/repomd.xml:375: parser error : Opening and 
ending tag mismatch: img line 375 and td
ages-pw.secureserver.net/images/061703/spc_trans.gif" border="0" 
height="8"></td
                                                                              
^
//var/cache/yum/macromedia/repomd.xml:376: parser error : Opening and 
ending tag mismatch: br line 374 and tr
             </tr>
                  ^
//var/cache/yum/macromedia/repomd.xml:377: parser error : Opening and 
ending tag mismatch: br line 349 and table
           </table>
                   ^
//var/cache/yum/macromedia/repomd.xml:379: parser error : Opening and 
ending tag mismatch: a line 349 and td
                   </td>
                        ^
//var/cache/yum/macromedia/repomd.xml:380: parser error : Opening and 
ending tag mismatch: td line 349 and tr
               </tr>
                    ^
//var/cache/yum/macromedia/repomd.xml:381: parser error : Opening and 
ending tag mismatch: tr line 348 and table
           </table>
                   ^
//var/cache/yum/macromedia/repomd.xml:389: parser error : EntityRef: 
expecting ';'
"center"><a 
href="http://www.lifeonline.com/gdshop/radio/default.asp?isc=&domain
                                                                              
^
//var/cache/yum/macromedia/repomd.xml:389: parser error : Opening and 
ending tag mismatch: img line 389 and a
lifeonline_tm.gif" border="0" alt="Life Online With Bob Parsons" 
vspace="8"></a>
                                                                              
^
//var/cache/yum/macromedia/repomd.xml:389: parser error : Opening and 
ending tag mismatch: a line 389 and td
online_tm.gif" border="0" alt="Life Online With Bob Parsons" 
vspace="8"></a></td
                                                                              
^
//var/cache/yum/macromedia/repomd.xml:390: parser error : Opening and 
ending tag mismatch: td line 389 and tr
             </tr>
                  ^
//var/cache/yum/macromedia/repomd.xml:393: parser error : Opening and 
ending tag mismatch: br line 392 and td
es-pw.secureserver.net/images/061703/spc_trans.gif" border="0" 
height="8" /></td
                                                                              
^
//var/cache/yum/macromedia/repomd.xml:394: parser error : Opening and 
ending tag mismatch: td line 392 and tr
               </tr>
                    ^
//var/cache/yum/macromedia/repomd.xml:395: parser error : Opening and 
ending tag mismatch: tr line 391 and table
           </table>
                   ^
//var/cache/yum/macromedia/repomd.xml:397: parser error : Opening and 
ending tag mismatch: tr line 388 and td
           </td></tr></table>

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~