Often people contact me as they might have missed an event or are looking for additional content on a particular product or technology. Usually webcasts form an important past of my follow up with them as they really are great for drilling into things.
People can attend live webcasts and ask their specific questions to the experts online or they can download an achieved webcast and simply skip to the bits that are most relevant for them - either are good depending on you need.
To enable you to root out the specific webcasts that might be of use to you out I wanted to provide you a link to this very practical tool that enables you to search by product/audience/on-demand/live webcasts.
If you have any other questions or comments in this regard don't hesitate to contact me.