PointCast is going public, and no one cares. Marimba is in the software distribution business and avoids the push label. BackWeb is still puttering along, destination unknown. Most of the others have faded away. Nope, the current smart money is on portals.
Portals are kind of like push, except that the information stays on the Web server.
Everyone now wants to get into the portal business. Add Disney to InfoSeek and you get InfoSqueak. Yahoo, Excite and Netscape are portals. Within a few years, we'll have intelligent agents at our beck and call. Content sites are even adopting a portal-style interface.