For people in Europe I can recommend rs-online.com as a reliable source of the STM32 boards. They delivered to Czech rep. in two days for a shipping fee of 9 USD. /not connected to them, just a happy customer../ And BTW the board itself is very cool. It boots up with six colourful icons on the LCD (video player-image browser-clock-game-performance benchmark-system info). Reminds one of the older mobile phones. You can control it by touching the display. Nice. Really looking forward to the hands-on part of webinars.