Amazon.com: ASUS AM3 Plus Motherboard : Electronics
Best Mini-ITX Motherboards: Holiday 2013
ZOTAC 880GITX-A-E AM3 Mini ITX AMD Motherboard - Newegg.com
ASUS M4A88T-I Deluxe AM3 Mini ITX AMD Motherboard - Newegg.com
Used - Like New: GIGABYTE GA-78LMT-USB3 (rev. 6.0) AM3+/AM3 Micro ATX AMD Motherboard - Newegg.com
I found it. An mitx sized AM3+ motherboard. : r/Amd
ASUS VM40B Desktop Motherboard Socket AM3 AMD 785G DDR3 integrated 1007U CPU USB3 SATA3 HDMI 17*17cm Mini PC Motherboard|Motherboards| - AliExpress
Motherboard Am3 Mini Pc Support Adaptor Mini Atx Top45 T7100 - Buy Motherboard Am3 Mini Pc,4 Ethernet Ports Motherboard,Net2550 Fanless Motherboard Product on Alibaba.com
Motherboard Am3 Mini Pc Support Adaptor Mini Atx Top45 T7100 - Buy Motherboard Am3 Mini Pc,4 Ethernet Ports Motherboard,Net2550 Fanless Motherboard Product on Alibaba.com