JAN gets our vote for one of the most helpful resources for employers and employees seeking to identify reasonable accommodations. The JAN site is easy to navigate and you can get someone live on the phone. JAN has a wealth of information regarding accommodation ideas, process guidelines and real solutions. We highly recommend this site.
If you are working on job descriptions and looking for a resource to help with that task, O*NET is the site. Funded by US Department of Labor/Employment and Training Administration (USDOL/ETA) the O*NET program is the nation’s primary source of occupational information. Central to the project is the O*NET database, containing information on hundreds of standardized and occupation-specific descriptors. The database, which is available to the public at no cost, is continually updated by surveying a broad range of workers from each occupation.