Abstract: A grounding device for electrical connectors includes, in a first variation, lay-in grounding lugs for use on existing wall receptacles and on clamps, and, in a second variation, automatic grounding connections between the ground socket and back plate of an electrical receptacle. The lay-in grounding lugs comprise a channeled body and a clamping plate for releasable attachment to the body to clamp a ground wire therebetween. The body and clamping plate have interfitting flanges which react against a clamping screw threaded through the clamping plate into engagement with a wire laid in the channel of the body. In use, a ground wire can be easily laid into the channel and the clamping plate and screw then fitted, substantially increasing the ease and speed of making ground connections.