Graphic: 'Muy Muy Rapido Tuesday' icon.

Eldon has a question and I've been unable to answer it. I thought this might be a good time to tap the collective intelligence of the internet and post it here:

Do you know the term for when you become suddenly aware of something and start seeing it everywhere?

For example: "I had never heard of this band, XYZ. Today I read about them in the paper, and then my
friends told me about them. Then I saw a poster for them..."

Another example: "I'd never heard of the book ABC, but today everywhere I went I saw it for sale and
people seemed ot have it"

Yet another example: "I only recently heard the word 'blog' for the first time, but I've heard it in so many conversations this week."

He's looking for the term that describes this phenomenon: learning about something and then suddenly seeing instances of it everywhere. I vaguely remember hearing that there was such a word. Any ideas?