The HTML 4.01 specification suggests using the "title" attribute in the link:
<a href="http://www.ibm.com" title="Big Blue">IBM</a>
This works in Internet Explorer 5.5: if you move the mouse over the link and stop, it displays the title text in a popup. Netscape 4.75 doesn't appear to do anything with it.
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Phil Hanna
Sun Certified Programmer for the
Java 2 Platform
Author of :
JSP: The Complete Reference
Instant Java Servlets
Phil Hanna<BR>Sun Certified Programmer for the Java 2 Platform<BR>Author of :<BR><A HREF="http://www.amazon.com/exec/obidos/ASIN/0072127686/electricporkchop/107-3548162-1137317" TARGET=_blank rel="nofollow">JSP: The Complete Reference</A><BR><A HREF="http://www.amazon.com/exec/obidos/ASIN/0072124253/electricporkchop/107-3548162-1137317" TARGET=_blank rel="nofollow">Instant Java Servlets</A>