eLearn: Ten Web 2.0 Things You Can Do in Ten Minutes to Be a More Successful E-learning Professional
List from Stephen Downes of quick activities. Although the title says "e-learning professionals" many of these would be applicable to anyone interested in some quick ongoing professional development
This site helps connect people to learn languages. You can find a partner to practice your skills through IM, VOIP, etc. Also includes a Q&A and resources section.