Just Leap In 是一個瀏覽器為基礎的3D虛擬世界，今天公開測試。
You can (1) Create a 3D world. (2) Share your Photos & Videos. (3) Add a soundtrack. (4) Connect with friends. (5) Share on the Web.
Basically it is Google Lively which has died so I am not sure what is their edge as 3D world requires lots of manpower as well as hardware but not very effective in advertising power.