This one comes to us from the sensational headlines department: according to spam researchers at Barracuda Networks, spam now accounts for 90 to 95 percent of all email sent. And that’s not the most disturbing thing: the problem is only getting worse. While spam only accounted for 5 percent of all email in 2001, that percentage rose steadily to 85-90 percent last year and as much as 95 percent this year. While not everyone agrees on these numbers–Symantec says that their studies show spam volume increasing from 56 percent last year to 71 percent this year–researchers at least agree that the general trend is that spam volume is still on the rise. 

For more on the statistic:
– see this Ars Technica article