UPDATE: September 13, 12.25pm (UK time), 2001.
Macromedia's Web World conference has been cancelled, in response to Tuesday's terrorist attack.

Further information will be made available on Macromedia's Web site during the course of today.

Macromedia's Web World event opens on Monday September 17. It's the company's main event for its customers, and involves, special panels and workshops covering all its products.

Organizers are promising keynotes from both Macromedia president Kevin Lynch and chief technology officer, Jeremy Allaire. However, they warn that all events are subject to developments concerning the current US-airspace freeze.

The event will have sessions dedicated to Dreamweaver, Fireworks, Flash and Shockwave. Also being covered is ColdFusion UltraDev Studio, and the company's Web-design workflow solution that is set to ship to Mac OS X. SiteSpring - the company's Web workgroup-management product - will also come in for attention.

Rob Burgess, Macromedia's chairman and CEO said: "Macromedia Web World will bring together the top experts on Macromedia Flash, Dreamweaver, Shockwave, and the full suite of Macromedia applications for building world-class Web sites."

The standard rate for the full programme of events available at Macromedia Web World costs $1,695. It's also possible to book for shorter sessions.