Ads appearing after my research

I don't know much about internet and I have no idea what is called, or if there's a name about this. I am a noob when it comes to this stuff. Everytime I do a little more research on google about something, once I am done and start surfing around, it happens that I get ads with the subject I was checking before. For example, I was reading about trading markets, then suddenly appeared different ads on websites about trading systems, which it never happened before, because I recently started to read about that. Yesterday I searched motocross and it's happening again.

the add with the motocross in the right. It's not a coincidence, if there's someone who did not observed that before, do a test for a few days. I can update everyday screenshots if it's necessary. And I am curious how this works, because it's quite interesting. So, who knows ?

It's called "a reason to get AdBlock".

Welcome to the age of the all-knowing Google.

Short version: You search "motocross" Google stores your ip, computer address and the term 'motocross'. Next time you visit a random site. Google loads in ads that have to do with 'motocross'.

Get adblock and always leave it on.

It's targeted marketing. Google knows the terms that you've been searching for, and Google Adsense serves ads based on this activity.

@nictel: Another step out of my cave.

Thanks for the answers. Maybe I will install the adblock, last time when I tried, my laptop was too fucked up and it didn't worked.

@CommanderGarrus: Best thing is having a Google account: I had a girl friend looking at dresses on one of my computers and behold, dresses on my laptop, desktop and mobile!

I personally like targeted ads. At the start of the year I wanted to switch banks and buy a car. I got lots of bank ads and car ads. It beats getting ads for something I'd never want, like cleaning supplies.

When you get a google acount you can actually say which kind of ads you want to see (but only works with google ad sense ads) or which not.

It's called "Big Brother". Get used to it.

@nictel: I am always signed in.

@mosespippy: It's a tease for me, seeing motocross on random websites now.