Yes, it is this week. My apologies for being late in announcing it via this post, but hopefully you were reminded by the official channels prior to missing half of the events. And if you are not participating in any eweek activities, this is still a good week to remind others about the existential pleasures of engineering.
Eweek was founded by NSPE in 1951. It usually takes place in mid February and this year is being held between Feb 15 - 21. Engineering colleges and universities nation wide typically have special events and competitions during eweek. If you've though about a visit back to your alma mater, this would be an excellent week to attend.
You can learn more about events for the remainder of eweek 2009 through NSPE's website.