The Floranta libraries provide components for building Rich Client Wikis using AJAX or Java. Floranta clients can be embedded in any webpage (even plain html) and allow users to leave notes, images, cards, etc on the pages. Eg: http://www.floranta.com
JWDE extracts product information set from web and dumps is into db so e-commerce packages can use it. Currently JWDE can extract information from saved HTML files and convert it into JWDE XML format which can be save to osCMax e-commerce product.