Think of this rip-roaring package tour as the personal-essay equivalent of The Original Kings of Comedy. Except instead of a round-robin of chitlin’-circuit heavyweights, you’ve got a former Phoenix newspaper columnist, an NPR contributor with a best-selling memoir, and an ex-child star with an Oscar nomination under her belt. Notaro, author of the popular Idiot Girls blog and her new collection I Am the Potty Mouth, describes herself as looking like one of the sisters from the Little House on the Prairie TV show — “not the pretty blonde sister who God eventually struck blind, but the buck-toothed gawky sister who was always tending to some farm animal or crop crisis thing.” Lancaster, who runs the Jennsylvania blog, just published the well-received memoir The Tao of Martha, in which she grapples with Martha Stewart’s domestic dynamism and insists the clutter in her house isn’t the product of a hoarding mentality. (“If I could miracle that shit out of existence with one wrinkle of my Bewitched nose, I’d be on it in a second.”) Cummings — yes, Marsha Mason’s precocious daughter in the Neil Simon smash The Goodbye Girl and a regular on the ’70s drama Family — has reinvented herself as a tart-tongued commenter on topics ranging from family to fashion on her blog The QC Report. Her books include a home-schooling exploration with the commendable title The Year of Learning Dangerously. Consider this a night of introversion for extroverts, or extroversion for introverts. Or something.