Sensors Web Portal -- http://www.sensorsportal.com -- from IFSA. A lot of information about different sensors, transducers and its applications. Forum, wish list, free research and technical articles and free monthly published Sensors & Transducers Journal (ISSN 1726- 5479) plus much more.
If you can't find what you looking for here then you might try eng-tips.com. One thing you need to keep in mind is that here people like Ian Verhappen, Walt Boyes,Dick Caro, Curt Wuollet, Jonas Berge etc. are regular contributors. These guys write the books on controls. This is probably the best site strictly related to electrical controls.
EE HomePage.com is targeted at electrical engineering professionals, educators and students. The site contains tools, reference materials and advice to assist EEs in improving their skill sets and managing and promoting their careers.