First I must say "Thanks Karlin" for the kewl new upgrade! It's awesome! I look forward to keeping a blog on here. What a great way to keep a record of my journey to purchasing my first Cavalier King Charles Spaniel!
You can post images, add email links, use quotes, use smilies, all the same way as you do a regular post.
You can also subscribe to other people's blogs so that you know as soon as they've made a new post.
If you want, you can choose to moderate comments before they appear -- so you OK them before they can be seen publicly.
I have installed a spam filter but you will probably eventually start to get spam in your comments, which you can simply delete.