helloWorld offers an all-in-one web-based communications solution featuring fully-integrated streaming video. With the helloWorld Studio, it's easy to create, publish and store our digital lives, be it our pictures, videos, a live or an on-demand webcast, our music, documents, or calendars. You can even manage your emails and reply with graphic-rich video. Share all your adventures on your helloWorld blog page, introduce friends to a new band, or star in and post your own podcast series. You can even submit your video creations to helloTV where you can win cash, prizes, or an appearance on a major TV network! Pick the plan that works best for you and join helloWorld today!
In addition to HelloWorld there are a number of other players in the market.
Vimeo has very quick playback, and a very beautiful interface to boot. Definately great for widescreen lovers
Mogulus is great for doing live broadcasts. It has a flash control desk that you can use to queue in video from multiple webcam sources. UkuleleUnderground.com used this to do the worlds first ever ukulele open mic night online.
Speaking of online videos. We all know that a picture is worth a thousand words, and video show around 24 pictures per second, plus audio - that's lots of information in a very short amount of time. The people over at Common Craft specialise in making video explanations in plain english. Their videos are fun to watch, and are quite good at explaining things. If you have a difficult concept you are trying to explain, these guys might be perfect for you.