Flash may seem to make websites look cool but what is cool about seach engines not being able to index your content making you rank lower in search results and having less search visitors. Another problem with flash is that it can be heavy on computer resources and may cause problems with the hardware your visitors are using. This leads to slow loading time,browser crashes and even compleate system shutdowns.

Many people also do not want to use things like flash block because it makes browsing uninteresting especially since many blog posts now include a youtube video.The Best way is to use a Browser like Opera or Firefox with Greesemonkey scripts So you can change how the Page looks by blocking Content.But you can Also right click on them and uncheck the radio button that says loop the only problem is that when you refresh the page the loop will start over again.

I often have to do this when I use yahoo mail as the are know for having many rich media ads displaying in your inbox.I guess this is why I do not use the Service very much anymore as there are times when I cant read my mail becasue there is an Advertisment covering my Mailbox and maybe another reason why Gmail is way better than yahoo mail