Amazon.com : Neewer Professional Vertical Battery Grip Replacement for Nikon D3100/D3200/D3300/D5300 SLR Digital Camera, Works with 1 or 2 Pieces EN-EL14 Batteries : Electronics
Amazon.com : Excelshoots USB Cable Works for Nikon D3100 Camera, and USB Computer Cord for Nikon D3100 + Excelshoots Card Reader : Electronics
Amazon.com : 52mm 7PC Filter Set for Nikon D3100, D3200, D3300, D5100, D5200, D5300, D5500 with NIKKOR 18-55mm f/3.5-5.6G VR II Lens - Includes 3 PC Filter Kit (UV-CPL-FLD) and 4 PC
Nikon D3100 by QuickPro:Amazon.com:Appstore for Android
Amazon.com : Screen Protector, Wisdompro® 8 Pack Clear Screen Protectors for Nikon D3100 D3200 D3300 D7100 Digital Camera - Anti-Scratch LCD Screen Protector Guard : Electronics
Amazon.com : Nikon D3100 DSLR Camera with 18-55mm f/3.5-5.6 Auto Focus-S Nikkor Zoom Lens (Discontinued by Manufacturer) : Electronics
Amazon.com : Phottix Battery Grip BG-D3100 for Nikon D3100 and D3200 : Digital Camera Battery Grips : Electronics
Amazon.com : Nikon D3100 DSLR Camera with 18-55mm f/3.5-5.6 Auto Focus-S Nikkor Zoom Lens (Discontinued by Manufacturer) : Electronics