The easiest way to find a blog is to search using labels. Labels appear at the bottom of each post and in the "Labels" section of the sidebar.
You can search using labels describing the content or locations discussed in a blog. For example: books or Victoria. Be aware that starred labels (those with a * at the beginning of the word) are only used for topics discussed in this blog.
Every blog is given an alphanumeric label based on it's name. You can search for specific blogs using these labels. For example Firemind can be found by clicking on the def label and 2 Lazy 2 Blog by clicking on 0-9.
Every blog listed in the directory is given the # label. You can use the label to browse through the directory when you aren't sure what you are looking for.
The information listed when you click on a label is not sorted alphanumerically. Hopefully that problem will be resolved in the future.