The Blog Archive may be used in four modes that differ in the way the data is made accessible:

CHRON

this is a chronological way of browsing the archive; select a year and a month to restrict the list of postings to that timespan.

CAT

use the CAT mode to list postings in each SubjectCategory

TAG

list postings by exploring their BlogTags

LEX

retrieve postings by exploring most frequently used words

The CAT, TAG, and LEX modes use tag clouds to visualize the frequency of the cateogries, tags and words respectively.