Herbs you can grow on a windowsill

Basil

en.wikipedia.org

Pinch the tops off and it gets bushier. Wants all the sun you've got.

Parsley

en.wikipedia.org

Rosemary

en.wikipedia.org

Oregano

en.wikipedia.org

Mint

en.wikipedia.org

Give it its own pot. It has territorial ambitions.

Chives

en.wikipedia.org

Thyme

en.wikipedia.org

Likes being ignored. My kind of plant.

Coriander

en.wikipedia.org

Bolts if you look at it wrong. Sow a little every few weeks.