Reading and commenting on other blogs is a big part of networking. Making your blog easily accessible through the comments you leave is ideal. You know how some people put a fancy link to their blog within their signature? Typically that's accomplished with a little simple HTML code. Some commenting platforms enable you to add your blog's URL (your web address, for instance my URL is www.sincerelyjennamarie.com) to your 'profile' or automatically translate a typed URL into a clickable link, while many do not. Blogger for instance leaves a URL as plain text.
So on to the technical stuff ;)
Here's the code if you just want to copy and paste:
Simply sub in your blog's URL in place of mine. Then put whatever text you would like to appear as the link in place of "Sincerely Jenna Marie".