|"Why does it matter?"|
Because you're going to get recommendations based on US prices & US availability.
Look for a board based on an AMD 800 series chipset (870, 880, 890) & go from there. Personally, I don't think there's a really bad motherboard manufacturer out there, so unless you have a preference, it shouldn't matter much if the board is from Asus, Biostar, ECS, Gigabyte, MSI, etc. Make sure it has the options you want (for example, 2 RAM slots or 4?), then take a few minutes to google up some reviews. You may even want to download the manual from the manufacturer's website & review the BIOS chapter.