I can't take credit for this. The author is, unfortunately, unknown. Enjoy:

'Twas the night before Christmas, when all through the house
Not a creature was stirring, except Papa’s mouse.
The computer was humming, the icons were hopping,
As Papa did last minute Internet shopping.

The stockings were hung by the modem with care
In hope that St. Nicholas would bring new software.
The children were nestled all snug in their beds,
While visions of computer games danced in their heads.

Dark Forces for Billy, and Doom II for Dan,
And Carmen San Diego for Pamela Ann.
The letters to Santa were sent out by Mom,
To santaclaus@toyshop.northpole.com

Which has now be re-routed to Washington state;
You see, Santa’s workshop was bought by Bill Gates.
All the elves and reindeer have had to skedaddle
To flashy new quarters in suburban Seattle.

After centuries of a life that was simple and spare,
St. Nicholas is suddenly a new billionaire,
With shiny red Porsche in the place of his sleigh,
And a house on Lake Washington that’s just down the way

From where Bill has his mansion, the old fellow preens
In black Gucci boots and red Calvin Klein jeans.
The elves have stock options and desks with a view,
Where they write computer code for Johnny and Sue.

No more dolls or tin soldiers or little toy drums
Will be under the tree, only Compact Disk ROMs
With the Microsoft label. So spin up your drive,
From now on Christmas runs on Windows 95.

More rapid than eagles the competitors came,
And Bill whistled, and shouted, and called them by name.
"Now, Adobe! Now Lotus! Now Intuit, too,
Now Apple! And Netscape! You are all through.

It’s Microsoft’s Santa that the kids can’t resist,
It’s the ultimate software with a traditional twist.
Recommended by no less than the jolly old elf,
And on the package, a picture, of Santa himself.

Get ‘em young, keep ‘em long, is Microsoft’s scheme,
And a merger with Santa is a marketer’s dream.
To the top of the NASDAQ! To the top of the Dow!
Now dash away! Dash away! Dash away - wow!"

And Mama in her ‘kerchief and I in my cap,
Had just settled down for a long winter’s nap,
When out on the lawn there arose such a clatter,
The whirr and the hum of our satellite platter,

As it turned toward that new Christmas star in the sky.
The Santalite owned by the Microsoft guy.
As I sprang from my bed and was turning around,
My computer turned on with a Jingle Bells sound.

And there on the screen was a smiling Bill Gates
Next to jolly old Santa, two arm-in-arm mates.
And I heard them exclaim, in voices so bright,
"Have a Microsoft Christmas, and to all a good night."