SPIN, What SKS says is not to interpreted literally. The toll booth is not a toll booth, exactly. More of a boothlet. Think 'Being John Malkovich' for an idea of its dimensions. 'Client side' is on the client, but it is server-centric, and it has servlets. Similarly, the server has a 'clientlet' for when the server is in a client context for another server. The big breakthrough here is that a servlet itself can also have what are called 'clientlettes'. This allows a client to behave like a server using its servlet but the servlet can also behave like a client. Got it?
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