[Just_Smith]

That's the beauty of serving mostly read-only data - you can just cache the most frequented pages. I can't think of a time that I clicked on a link for Stack Exchange that wasn't served via a search engine. I've never purposefully clicked a link from within Stack Exchange, and I've never posted any answers. I can thank those who do for enabling my success in my career, but I'm willing to bet that most Stack Exchange users are just like me.

[prawn]

"I've never purposefully clicked a link from within Stack Exchange..."

How do you resist those crazy unrelated questions in the sidebar? Currently shown for me:

  Did Shadowfax go to Valinor?
  Is it legal for company to use my work email to pretend I still work there?
  Why can't we play rap on piano?
  Can a virus destroy the BIOS of a modern computer?

[antipaul]

These became so distracting that I applied an Adblock filter to hide the “Hot Network Questions” div, lol!

[baroffoos]

That sidebar is my biggest time waster in the day.

[kkarakk]

They changed it so you can hide hot network questions(without any karma requirement)

[golergka]

Well, thanks a lot, now I have no other choice but to google at least two of those.

[tinco]

That shadowfax one, quora is horrible that way too. You're interested in one bit of canon triva one time, and the site immediately assumes that particular story is all you want to read about, every day for months.

I bet gwaihir carried shadowfax to valinor.