OK OK I know April 1 is usually a day associated with making people look stupid (April fools and all that) but if you are a developer, have staff who are developers or want the anonymity of the web to brush up on some developer skills then Virtual Tech Day could be of interest to you. 

It is a chance to participate in 95 live sessions over a 24 hour period and learn heaps.

If on the other hand you are too busy doing April 1 stuff (running about with armfuls of whoopy cushions and that sort of thing ... tsk tsk) then keep hold of the link anyway because the sessions will be recorded for later viewing.