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 Feature Highlight: Highlights Diigo saves the day with "highlights". Highlights let you select the important snippets on a page and store them in your library with the page's bookmark. Let's try it. Just open a page, maybe one of your old-school bookmarks or one of your new cat bookmarks, and find the information on that page you actually care about. Select that important text. Got it? Okay, now put your helmet on, 'cause this might blow your mind! Click the highlight icon on the Diigo toolbar. It's the one with the "T" on a page with a yellow highlighter. You will notice that the selected text gets a yellow background. This means that the text has been saved in your library, and as long as you have the Diigo add-on the text will be highlighted on the page! How's that for easy?   Now you've highlighted the text. It will appear in your library within the bookmark for the page it is on. Go to your library and you can see how it works. If you're not sure how to get to your library, just click the second icon on the toolbar (Diigo icon to the left of the search bar) and then select "My Library »".

Sticky Notes on the Web What? I can put a sticky note on a web page? How? Oh, that's right! Diigo. Just right-click anywhere on the page and choose to "add a floating sticky note". Type up your note and choose "Post", then move the note anywhere on the page. You have to type a note first, before you move it where you want, otherwise there's nothing to move!

1. Just-in-time learning. Videogames give you just enough information that you can usefully apply. You are not given information you'll need for level 8 at level 1, which can often be the case with schools that download files of information that are never applied. Videogames provide doable challenges that are constantly pushing the edge of a player's competence. This is similar to Russian psychologist Lev Vygotsky's Zone of Proximal Development. Lev Vygotsky 2. Critical thinking. When you play videogames you're entering a virtual world with only the vaguest idea of what you are supposed to do. As a result, you need to explore the physics of the game and generate a hypothesis of how to navigate it. And then test it. Because games are complex, you are continually reformulating and retesting your hypothesis -- the hallmark of critical thinking. 3. Increased memory retention. Cognitive science has recently discovered that memory is a residue of thought. So what you think about is what you remember. As videogames make you think, they also hold the potential to increase memory retention. 4. Emotional interest. Videogames are emotionally engaging. Brain research has revealed that emotional interest helps humans learn. Basically, we don't pay attention to boring things. The amygdala is the emotional center of the brain and also the gateway to learning. 5. We learn best through images. Vision is our most dominant sense, taking up half of our brain's resources. The more visual input, the more likely it is to be recognized and recalled. Videogames meet this learning principle in spades as interactive visual simulations.

whether you are creating an environment where learning can take flight - dry kindling, tall trees - or are you creating an environment where, with a lot of damp branches, there is a lot of smoke, but little fire?

As +George Siemens suggests while talking about connectivism as an answer for the digital age, "learning is a process that occurs within nebulous environments of shifting core elements – not entirely under the control of the individual."

1-Twitter hashtags create conversations

2-Anything can be a Twitter hashtag

3-Twitter hashtags are both synchronous and asynchronous. . . sort of