People are getting used to spam, even though there's more of it, because less of it is about sex and porn, according to a new survey.

The Pew Internet and American Life Project asked 1,421 random Internet users for their opinions about spam, e-mail and phishing scams. The data apparently showed that people seem to be less bothered by spam recently because they've seen a decline in the number about pornography.

If you're getting less of the spam that bothers you most, the rest of it isn't seen to be as much of a problem, explained Deborah Fallows, a senior research fellow with the group. And that decline is at least in part a result of the US federal CAN-SPAM Act which went into effect on 1 January 2004.

Penalties for violations of the Act include fines of up to $250 per e-mail, capped at $6 million. The anti-spam measure has been used by law enforcement agencies to go after senders of pornographic e-mails.

Overall though, the amount of spam sent out is actually up by about 80 percent, according to some estimates. But much of that isn't getting through to users because of anti-spam filters and controls.

So, while more and more people are knocking at your door everyday, the number of them that are abusive is falling. Six of one, half a dozen of the other.