Similar to bathtubs, bathroom sinks have many designs to choose from. They also come in different shapes, sizes and motifs.
Bathroom sinks should ideally be located inside a bathroom although there are some rare instances where they were located outside instead. Location is an individual's preference but having it inside provides added convenience. Similar to bathtubs, sinks are made from different materials mostly lightweight and durable such as fibreglass or acrylic. An ideal bath sink should be wide enough for ease of use and deep enough so the user does not get wet from spilled water. Bathroom sinks are truly essential for such daily tasks as washing the face upon waking, shaving or brushing the teeth.

http://www.google.com/products?hl=en&q=bathroom+vanities+and+sinks&lnk=qsugt

This site is ideal when looking for various unique vanity bathroom sinks.

http://www.faucetdirect.com/index.cfm/page/search:browse/categoryID/4746/ll/leftnav
This is the site for self-rimming, semi-recessed, pedestal &under-mounted bath sinks.

http://www.sinksgallery.com
The site for artisan sinks and designer sinks (bathroom sinks as an art form).