Internet years pass much quicker than real years. It is due to the very frequent and enormous amount of updates on blogs and news sites.
Example: if you bump into an image that you had seen days ago it feels like it happened ages ago.
Fred Flinstone's comment: "I can't wait to try this videogame. When is it coming out?"
Michael J. Fox's comment: "Where have you been in the past 100 internet years? Your grandma might have rocked that game."