Line length does not matter,
as they will all end up in the same paragraph. To start
a new paragraph put in a blank line.
When you are adding a big block of text, it's a good idea
to type it in something like WordPad or any other text editor.
Then just copy and paste into the big white box above. This way if something
goes wrong, the stuff you typed isn't lost, which could be
very frustrating if you are a hunt-and-pecker like me!
If you are using MS Windows, WordPad can be found in
Start->Programs->Accessories->WordPad.
Notepad works too, but sometimese messes up the lines.
To make bold text, put "[b]" at the start, and "[/b]" at the end,
like this: here is some [b]bold text[/b], and this is plain.
To make italic text, put "[i]" at the start, and "[/i]" at the end,
like this: [i]italic text[/i]