it depends if the author has the tittle copyrighted if so then no it is not legal
A blog title is the blog's name e.g. "No stupid answers". A blog address is the web address (URL) that people need to use in order to get to the blog via web browser e.g. http://nostupidanswers.com
Yes, it isn't like companies using trademarks. You can use whatever your heart desires. you want to remember to title your blog about what your writing. It's got to be eye catching and not so boring that it's just like everyone else. It's kind of important to be as unique in your blog title, your blog and everything in it as you are personally. Remember etiquette.
It is not necessary. If you use the title of the book, underline the title.
Normally the title of a book is at the front of the book.
Google it or use the URL at the back of the book
If the author's real name is not available, you can use their screen name or username instead when citing the blog. If neither is provided, you can simply use the blog title in place of the author's name in the citation.
Yes. Book titles require capitalization.
Use whatever title you want to -- you are the author! Titles are the least important part of your book.
The title comes after you've finished your book. Finish writing first, and the title will come out of what you've written.
nope, it is illegal
Book blogs have all kinds of layouts, there are many places to get these layouts on the web. I personally use The Cutest Blog On The Block. The layouts are really cute and they're free :) http://www.thecutestblogontheblock.com/
depends but to be safe use citations