A Couple Blogger Questions

I am posting today (selfishly) with a couple blogger questions that I'm hoping someone can answer. They seem like simple things, but I just can't figure it out. Maybe some others are wondering the same thing :) (or maybe I'm the only one!).

My first question is:

When you comment on someone's blog, and you sign your name after your comment - I see lots of people also leave a link to their blog...but they don't write out the whole url (like I do) - they just have the title of their blog there and when you click on it - it takes you directly to their blog. How did you all do that??  

My second question is:

When I am scrolling through my google reader I notice that many of you have your blog button or favicon pictured next to your blog name rather than the blogger orange and white symbol. I also notice the same thing when posting comments on blogs. When I comment, the orange blogger symbol is next to my comment. How can I change those to be pictures of my blog button/ favicon? 

Thanks for listening and thanks in advance for your helpful answers! 

I'm reading yet another math book called, Young Mathematicians at Work: Constructing NUmber Sense, Addition, and Subtraction, by Catherine Twomey Fosnot. It's really good so far - I will definitely be back soon with a post about what I'm learning. Has anyone read this book or used her investigations in class before? 

Who's excited for the Bachelorette tonight?!?!