I use this Text Ticker - code in a textbox on the front page to inform our members on important updates on the network:
<p><marquee class="html-wpsites" direction="left" behavior="scroll" scrollamount="4" width="100%">YOUR TEXT HERE</marquee></p>
It works great, as it draws direct attention !
In some cases I would like to make the text clickable with a link. Any suggestions how to do that ?