[kprobst]

Don't forget the eponymous "Under construction" animated gif. The halcyon days of web design.

[redslazer]

Which is why I think it is rather humours that Jquery is using it on their plugin page. http://plugins.jquery.com/

[commanderkeen08]

Don't forget the "tables" used for layout.

Oh wait, my bank still does this. Oh wait, so does Yale University.

[swah]

Also, the only way to use the "remaining" space when you have two fixed width columns inside a bigger div IIRC :P

[kpreid]

display: (table | table-cell | table-row);

Same layout functionality, no abuse of HTML semantics.

[Herald_MJ]

Oh wait, so does Hacker News