It’s difficult to print blog posts. Few blogs have a “print-friendly” button, and the print-friendly formatting of those that do usually omits graphs that appear in the post.
“Readability” provides a solution. Go to the Readability website at lab.arc90.com/experiments/readability. Choose the font style and size and the margins you prefer. Then drag a Readability link onto your Bookmarks toolbar. Then, whenever you’re at a blog post you’d like to print (to pdf or hard copy), just click once on your new Readability toolbar button and the post is quickly formatted to print. Text and graphs in; ads and other junk out.
I’ve tried it on several blogs, including my own, and it seems to work nicely.