EMNOOTI Metal Table Lamp Base,Standard E26 E27 Socket for Incandescent LED CFL Halogen Light Bulb,with in-line ON/Off Switch,Holding Medimun Screw Base Light Bulb on Desktop - Amazon.com
Hickey Porcelain Light Socket with 18" Leads | Medium (E26)
Keyless Glazed Porcelain Light Socket | Medium Base (E26)
Legrand 660-Watt Plastic Push-through Ceiling Socket, White in the Light Sockets department at Lowes.com
Vintage Off/On Pull Chain Lamp Socket with Solid Metal Cast Shell, E26 Medium Base - royalLAMPSHADES
Lamp Holder, White color (Miniature Base, Bulb Socket), Pack of 10 - ScienceKitStore.com
Power Gear 3-Way Lamp Socket, Medium Base, Turn for Low-Medium-High Light Settings, For Floor and Table Lamps, DIY Project, UL Listed, Brushed Gold, 54372 - Light Sockets - Amazon.com
E-26 Base 90 Degree Phenolic Lamp Socket with 1/8ips Threaded Hickey and 24in Wire Leads