Popular web-series

Whilst looking online for good web-series to watch and take inspiration from i found this website http://mashable.com/2010/01/08/top-10-web-series-december/ its basically a table showing the top ten most popular web-series each month, here is a screen shot of december 2009s table. 

As you can see in the 'Genre' category, all of the series but one are classed as 'comedy' this shows that a key element of a web-series is for it to be funny, i think this is mainly because for somthing to be a GOOD drama, horror, thriller etc you need to be able to build up a good plot and need time to build suspense. this is difficult to do in a webisode as they are usually no longer than about 10 minuets