Flash allows you to add multimedia (motion, sound, video and animation) to your site.
The advantages of Flash technology are that it can add interactivity and a 'wow' factor to your site. It can be used as an engaging presentation to show a video-like introduction about you and your real estate business. The disadvantage is, depending on how it is used, it will take longer for visitors to load your site on their browsers especially on a dial-up connection. If it's not embedded properly, a Flash home page may look great but will not index well on search engines. However, done correctly, your Flash piece can help present a powerful image and show buyers and sellers that you know technology.