you can place directly the videostream on your page inside html tags. the prerequisite is - you have to know ip address, port and the post url in order to stream the video.
One thing - if you want to secure the camera - then you have to set the password on it.
Some of the example of open cameras you can find here:
http://www.viralcameras.com/0/posts/16-house-building/19-house-building/39273-big-pretty-and-nice-building-in-canada-online-camera.html
or
http://www.viralcameras.com/0/posts/13-bar-cafe/16-bar-cafe/38941-ukraine-camera-online-lviv.html
or any other.
The tag will be something like:
- this depends on the camera brand/type you want to be shown
Thanks.