MLB (Major League Baseball) Ethics & Awarness

Do you think it would be ethical if I had popup ad's all over my websites? I didn't think so. The MLB (Major League Baseball) thinks this is all right. Go to there website www.mlb.com, and seeit for yourself. My websites (http://www.AbacusComputer.US) don't have them. Would you think it's ethical to blast unwanted ads. I'm really disillusioned by what large companies think is ethical.
I remember a adware blasting site, Match Clip, or Match- Something. After awhile they lost revenue/visitors as more and more people avoided there site. This company tried to re-invent its self as a music download company but to no avail. Within 6 months they had to merge with someone before they were to be shuttered.
Webmasters have a duty to present good clean websites with the option of reading the ads. Any Webmaster/Company that forces content down my browser will not get my business. Doe's Google flash you with pop-ups? That's ethics, and that's the way my everyday business is run. Thanks Google, you've shown you can still make money being ethical.