There are three basic types of orgasm for women. Most women can reach orgasm through stimulation of the clitoris with the fingers, oral sex or vibrator.
A vaginal orgasm involving the uterus and reproductive system can be achieved by stimulating the G-spot. The G-spot is a spongy mass of tissue that swells when stimulated. It's still elusive to a lot of women, but it can be found a couple of inches inside the vagina on the front wall. G-spot stimulation can produce a more intense, deep orgasm.
Blended orgasms are a combination of clitoral and G-spot stimulation. These can produce some of the most powerful orgasms, often accompanied by female ejaculation.
Multiple orgasms are a series of orgasms that happen over a short period of time and they can happen with any type of orgasm. After the first climax a woman can have sequential multiples where she stops for a brief period and then stimulation is continued, or she could have serial multiples, where there is no interruption in arousal.
A simultaneous orgasm is when a couple orgasm at the same time. This can be a wonderful experience, though probably not something you should aim to do every time you make love, half the fun of orgasm is watching your partner have one.
The brain is the biggest sex organ, and because of this, some people are able to reach climax without genital stimulation. Spontaneous orgasm or extragenital orgasm is when a woman has erotic thoughts and fantasies until she reaches orgasm.
Nocturnal orgasms or wet dreams are another type induced by the brain while sleeping.
An extended orgasm is a single orgasm that maintains the pleasurable sensations of climax over a period of time. The length of the orgasm can be built up over time and can last an hour or more.
Expanded orgasm is a path of expanding both sensual awareness and consciousness while receiving genital stimulation. It is felt in the body, mind, emotions, and spirit, all at once. The goal (and focus) of receiving expanded orgasm is simply to feel as much of that pleasure as possible.