Please answer LibraryThing related questions here (and on the other Help and FAQ pages). To ASK questions, however, please use Talk.
How do I get one of those fancy-schmancy blog widgets?
Click the tools tab, and you'll see the blog widget options. You can make a standard widget, showing what you're currently reading, recently added book covers, your tag cloud—oh, the possiblities. You can also make a Search widget, letting visitors to your blog search your LibraryThing library right there on your blog.
Where is the style guide for writing custom CSS?
Right here! In order to apply styles only to a specific widget, we give each one a unique ID, which we use in all styles. This means you could have more than one widget at a time on your page, with different styles.
For corners and borders, main body text for book titles, author names, etc.
Book review text
style="width: 100px; height: 300px; align="center"
Tag text style
Do you have widgets that work on LiveJournal? MySpace?