Just a few links here. As mentioned in my previous post, I'm taking an online picture book writing class from Joyce Sweeney. She offers other online classes as well. You can check her information out at http://www.sweeneywritingcoach.com/.
Katherine shared a link with me earlier for an online 2-hour course by Ann Cannon sponsored through Folio Academy. The course is $30 and covers dos and don'ts for writing picture books. You can see a trailer for the course at http://folioacademy.com/samplebc.html.
And finally, for you illustrators out there, Will Terry has a YouTube channel with illustration tips and tricks. Find his channel here: http://www.youtube.com/user/willterryart