Every day, Stockpickr members are creating and sharing stock ideas with each other through various platforms. If you're not already a member, you can sign up here in one simple step.Here's a tour through what's going on at Stockpickr today. Do-It-Yourself Portfolios: Stockpickr member mktmdb updated a portfolio today called matrix, a self-described mix of tech, energy and penny stocks. The portfolio includes Microsoft ( MSFT) and General Electric ( GE). For the Carefully Speculative portfolio, member jdouble777 selects Joy Global ( JOYG) for its "huge growth potential" and Sallie Mae ( SLM) because it's undervalued and because "people are paying their student loans." Stockpickr Answers: Dakine wants to know why Evergreen Solar ( ESLR) is up today, and Karen Schubeck asks: " Any thoughts on Research In Motion ( RIMM) going into earnings?" Articles: Today's articles examine stocks that have recently increased their dividends, including Darden ( DRI), and highlights from recent 'Fast Money' episodes. Spotlight Portfolios: Highlighted portfolios today include Top Tech Short-Squeeze Plays and 'Fast Money' Second-Half Stocks. Also check out the Stockpickr Forum, which includes a discussion of what happened to Discovery Labs ( DSCO), and the Professional Portfolios, including Warren Buffett's. Becoming a member of Stockpickr is easy. Sign up here, and learn about how to use Stockpickr here.