Twitter is by far one of the most useful PD tools I have come across. I was at first skeptical, and like many thought it was for finding out when celebrities did silly things. One of my colleagues convinced me to try it out for educational resource sharing, and I haven’t looked back since!
Twitter allows you to follow who you want to follow. It also allows you to look where you want to find information. Use hashtags to find relevant information (#edtech, #edchat, #math, #science, #flippedclassroom, #etc).
Personally I use a twitter feed embedded into my class page to send quick updates without having to access the page code. That allows me to share information with students quickly, without them having to have a Twitter account. Those that do have accounts can also share with others on the class page. This in combination with Google Calendars means I don’t really need to edit my main class page all year!
It’s a bit tough if you’re using WordPress to embed a Twitter Widget, but if you use another platform such as Moodle, Google Sites, Blogger, or any program that let’s you embed objects, then you can easily include custom searches or profiles. You can check out my G7 Science homepage if you’re interested to see how I use it on a regular basis.