There are a few situations where one could yell this phrase, but the main thing is to convey sarcasm. For example if someone you know says something that seems utterly useless in a tone where they're trying to sound like it's the news of the year (and it really isn't), then you'd say this phrase in reply. See alert the media.
(instant messenger convo)

Joe: holy shit dude omg i just asked out sally and she said yes *random emoticon* oh man shes so hawt

Jack: ZOMG ALERT THE INTERNET!!!~ lol dude i dont care shes prolly gonna hump u and dump u rofl

Joe: stfu *angry face* ur just jealous cuz u didnt get her u have no balls

Jack: maybe i should alert teh internet that ur a total douche lol
by Tengu October 25, 2006

The Urban Dictionary Mug

Lotsa space for your liquids.

Buy the mug

The Urban Dictionary Mug

Lotsa space for your liquids.

Buy the mug

The Urban Dictionary Mug

Your favorite word on a white mug.

Create a mug

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug

The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

Buy the t-shirt

The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

Buy the t-shirt
Top Definition
Synonym or modern version to "There's the phone, call someone who cares."
(loosely)

Master Shake: Thanks for ruining my lunch! Which is gone by the way...
Frylock: Have you looked in the fridge?
Master Shake: Oh Brainstorm! Alert the internet we got a genius over here
by Keshicus June 01, 2010

The Urban Dictionary Mug

Lotsa space for your liquids.

Buy the mug

The Urban Dictionary Mug

Lotsa space for your liquids.

Buy the mug

The Urban Dictionary Mug

Your favorite word on a white mug.

Create a mug

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug

The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

Buy the t-shirt

The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

Buy the t-shirt