1SITE is the ultra-professional edition of EasyWebEditor. It includes several additional features such as the Link Explorer, the Advanced Searches, automatic hyperlinked index generation, Macro, built-in image gallery / photo album / thumbnails generation and much more. The original user's interface makes it easy to manage large websites with lots of pages and links. For your office, the comprehensive alternative to Microsoft.
Additionally, any Website created with 1SITE is good for Firefox, Netscape, Opera and Mozilla (not just Internet Explorer).