SmileOnMyMac announced the immediate availability of browseback on Tuesday. browseback tracks the Web sites you visit, and builds a graphic history of each page as a PDF. You can view thumbnail images of each page, and search your Web history by content and keywords. Pages can be exported and shared or emailed, and it supports most Mac Web browsers, including Safari, and Firefox. browseback requires Mac OS X 10.4, and is available for download at the SmileOnMyMac Web site. It is priced at US$29.95.