What's the purpose of having jumps ("Click for more...") on long blog articles?

I'm not talking about sites that break stories across 10 short pages so that they can expose you to 10 times as many ads. I mean the click-once-to-read-the-entire-post style that I very often see on popular blogs. Random example: Andrew Sullivan puts a "Continue Reading [topic]..." link at the bottom of posts which reach past a certain vertical length, maybe one out of every four of the posts on the front page.

I can guess some reasons, but what reasons does the conventional wisdom hold? (Yes, I'm wondering if we should institute something like this for the Gameshelf.)

Dear Lazyweb,

What do you use to crosspost status updates on Facebook, Twitter, LinkedIn, and so forth?

Wondering if any of you iPhonesters might have an idea what's going on with my toy...

For several days, my iPhone's connectivity via 3G has been so slow as to be functionally useless. Safari often times out before even starting to load a page (and the model page I'm using is www.google.com). Sometimes it gets partway it and craps out, so it doesn't seem a DNS issue or anything. Other internet-using applications work so slowly that the phone usually locks the screen before anything interesting happens.

I was wondering if I maybe knocked its internal antenna loose or something, but phone calls still work fine, so it's probably not that, right?

WiFi works fine. Cycling the phone does not fix this.

This is a hard topic to google, becuase most of the results are about the slow rollout of 3g iphones in july. Frowny.

Edit: I just learned that you can shut off 3G to opt for Edge-only connections, so I tried that. Edge is failing too. :(

Google and Wikipedia aren't coming through for me on this one:

Imagine that we have a utility which, in the course of its duties, reads and writes files to a file system.

What sorts of behaviors would make it not NFS-safe? I thought NFS was totally transparent to man and beast alike, but perhaps this is not quite so?

I am almost done with this health insurance application; now I just need to pick a PCP.

Any locals got recommendations? (I am going to use Harvard Pilgrim, fwiw.)

I figure at least a handful of y'all know a little something about the Creative Commons...

If a work is under the CC "no derivatives" clause, does that mean I can't use it as a TV show soundtrack? It's not clear to me whether the admonition means that I can't make a new piece of the same kind of media out of it - use it as a sample in my own composition, that is - or whether I can't redistribute it in any form at all other than the pure-audio shape I found it in.

Edit Aw nuts, The CC FAQ sez yes it is derivative.