Classic comic 250 - Snopes

From half-hearted email-scare clunkers
To tales of beasts eating spelunkers,
The way everyone copes
Is to check it on Snopes—
But who will debunk the debunkers?

Original comic here.

Comic 1020 - Orion Nebula

My suspicion has grown very strong
That astronomers all have it wrong.
It's a "sword" to the prudes
But the real cool dudes
Know Orion has flopped out his dong.

Original comic here.

I must say, I have heard this suggested before. It seems very likely that the Ancient Greeks made the same joke.

Classic comic 393 - Ultimate Game

There once was a man from wherever
Who frustrated Death's dark endeavour.
He'd a role-playing game
Ready when the time came
So they sat reading rulebooks forever.

Original comic here.

Comic 925 - Cell Phones

It's a tricksy old thing, correlation,
For even assuming causation,
Does mobile telephony
Rush us to Persephone
Or disease cause its proliferation?

Original comic here.

Comic 869 - Server Attention Span

Request any page from the server
And it will assist you with fervour
But smartphones will find
That they get left behind -
The request slips its mind, by Minerva!

Original comic here.

And who among us hasn't, at one time or another, called upon a Roman goddess in our online frustration?