What is portal framework ?

In Java there are a lot of portal framework .. from my study i found :
Started with ...
Jakarta Pluto --> Jakarta JetSpeed --> OpenPortal --> BnPortal --> EXO Platform then
Liferay then Glassfish Web Synergy (now it call Web Space !!!) Please don't confuse both Synergy and Web Space, both are same haha ... what a mess previously

Base on my finding ...to answer Which is the best ? i would said Liferay or Web Space ... Web Space is enhance version from Liferay by Sun. However i cannot justify Exo Platform ... as i hardly can test into deep due there are a lot of exceptions ..too bad loh....

What is EE Portal ?

EE Portal ... Enterprise Exchange Portal ... is a B2B, B2C, C2C, B2G trading portal !
Still in designing stage ... Will call it Getrade ! or tradeChain, BarterDeal, OKDeal, TauTanDuit

Haha ! Cool name ah .... i need to think of some nice name Like Yahoo, Google, Facebook