In 2011, Adam Taylor realized that Twitter would be a fantastic way to connect his high school science students to scientists (read more about this here). He now runs a monthly Twitter meet-up between scientists and high school students, which can be found on Twitter using #SciStuChat. Adam provides more information about this program, and how to start similar programs, in the video below.
[youtube]http://youtu.be/dkzzjHa2b8Y[/youtube]One reason why it can be daunting to get involved in outreach is that many forms of outreach have long-term time commitments. For example, 
blogs and podcasts are expected to be updated semi-regularly, which can be difficult during particular times of the year (e.g., during your field season or when grant deadlines are looming). Outreach efforts such as #SciStuChat allow scientists to reach out in a meaningful way when they have time.