I've recently discovered the use of twitter for professional reasons and it is highly recommended because you can find out what other teachers from many different countries do in their lessons, the way they work with their students, how they use the ICTs in the classroom and so on. Come on, join TWITTER, what are you waiting for?
You can watch the following video, by Justin Tarte
In order to put a list of links in your blog, do as follows:
Go to design.
Choose 'add a gadget' from the right side.
Choose the gadget called 'link list'.
Write down the title you want to, for example, 'my favourite links'.
Sort them up alphabetically.
Insert the URL site you have chosen from the internet (once you have looked for the page you want to).
Give it a name.
Add more links or save.
View blog.
Note: You can rearrange the page elements on your blog by going to 'design' and then clicking and dragging with the mouse the element you want to to the right place.
If what you want to do is to insert a video, do as follows: Choose a video from 'youtube'. Below the video, you will see 'share' (=compartir). Then, click on 'Show more' (=mostrar más). Next, click on 'Blogger'. In the top right corner you will see 'sign out': Choose the blog you want the video to be inserted to. Then you can save it as draft or publish. Once you have your video on your post, you can add text.
Another way of doing this is by clicking on the icon which is on the right of the 'image'. You can upload the video from your folders or from You Tube.