Download.com
At Download.com you can search for software for PCS and mobile devices. It is a resource for free-to-try or free software downloads. It also features a list of the most popular downloads, reviews and ratings of software, which help in deciding what to download. The site has more than 90,000 free downloads to offer. A simple search for the term ‘CAD tools’ returns more than a thousand results that could be of interest to engineers. The search for ‘PCB’ returns a list of around 35 popular PCB design software.