Here are some milestones from Allie (as best as I can recall) from 7 to 9 months.
at 7 months: she crawled (which is earlier than the boys did); and started eating Cheerios, wet Crispix (bad choice, parents–very sticky to clean up) and baby food; buzzed her lips; and got two front bottom teeth.
at 8 months: she waved, pulled herself up in her crib and everywhere else; and began to eat almost everything with her hands (meat, vegetables, fruit, bread); said dadadada and lots of other expressive things; and began to wave her hands to signal stuff; followed the boys around everywhere crawling and getting into their stuff; usually napped 9:45-11:45 and 1:45-3:15 pm and then went down to sleep (after the boys) at 8:30 pm and slept until 7:00 am. We give her pacifiers in her crib. We often put on static on the radio to drown out the rambunctious boys but didn't use the static at night. No allergies–hallelujah. We started regularly using the barrett to keep her hair out of her eyes.
at 9 months: she began to cruise including sheer surfaces like a wall; and began to get two front top teeth; began to signal "more" with Sign Language; can get down from couch by letting herself down legs first on her tummy. She is not too into music, books, or the sippy cup yet.
The pictures below are from 8 months (January 2011):