Literally, worthy of blogging.
Describes an event, series of events, or (broadly) adventure that would be of general edification, amusement, and/or interest to humanity at large. The term is objective; thus, an adventure only interesting enough to appeal to
one's friends or to readers of a
blog on a specific topic does not apply.
By the time
Don got back from his hard-negotiated eight minutes with
Sheila, Mistress of the Thousand Pleasures, the trip to
Vegas had become officially blogworthy.