Hi, I'm checking for any options for including an IM in my site. I thinks about Java Applet or Flash components Right now, I used an applet on the client side. When user choose to message anyone, he click on button thats open new window including the applet inside jsp page. so far so good. The problem is I dont know how to notify the other user (the one thats you want to chat with), and how to open there the same jsp page (the one thats running the applet). There will be no problem if the first user would just do me a favor and pick up a phone call to notify his partner to run his applet, but my users are not so fair with me. so what is the best way to create a listner in the passive side? what is the most popular way doing so? and.. any of u who know about any IM thats work properly, and easy to use. I will be glad to know about. Thanks.