Diigo - HELP!

From: http://www.arikhanson.com/2011/01/25/7-reasons-diigo-should-be-your-social-bookmarking-tool/

So, I have been spending the evening trying to figure out Diigo (I know, exciting!) and I am really struggling with understanding how it all really works.  I think I was able to put the "diigolet" in my toolbar as mentioned in Richardson's chapter 6, but I don't know what to do now.  Do I find a website that I use often and save it into the library? And how do I do that?  I tried playing around with it, but it is like a second language to me and I wasn't able to do anything.  I would really appreciate some help...any takers?

Blogging and Wikis

In chapter 3, Richardson provides a step by step guide to creating and customizing your own blog.  I felt that this was very helpful for me since blogging is something I have never done before.  I really appreciated the tips that Richardson gave for what you can do under the "template" tab.  You can customize your blog page and really make it yours.  You can change the font, template, and add in links and pictures.  I am looking forward to using this chapter as more of a reference if I have any more questions.

Chapter 4 is about wikis.  I didn't really know what a wiki was and still am a little unsure.  To me, it seems like it is a big data base or blog where someone can post something and then another person can come along and edit the information that was posted before?  Wikis is something that I would like to know more about and obtain a better understanding of.  I would also like to know how wikis are used within the classroom setting.  Richardson suggested that wikis could be used as an online text for your classroom's curriculum.  This seems appropriate for older students, however, I am looking to see how it can be used with my kindergarten and first grade students.  This is something that I will look further into.