Jumpchart is an interactive collaborative wireframe service from Paste Interactive designed to help web developers and content creators working together building the architecture of a website.
The problem with the traditional website organization process, as described by the developers of Jumpchart, is that they are not interactive, and don’t carry momentum into the build phase. Jumpchart replaces the typical paper flowcharts, sitemaps, and wireframes website builders are accustomed to using.
Jumpchart also makes working with picky clients much easier, allowing for visualization and approval of site organization. Instead of trying to explain to clients how the site will be organized, the client can click through a preview of the sitemap with all of the page, subpages, and images intact. After all of the content in your Jumpchart is set, the whole Jumpchart you have constructed can be exported. This means no more re-typing text, no more copying and pasting, just pure clean valid XHTML and CSS. Changing a site is much easier in Jumpchart as well, moving whole sections of the site with a single click.
Although Jumpchart is currently in private beta, I recommend developers sign up to give the beta a try.