Shockwave.com - Online Flash Games

Have you heard of this site? It's a competitor of Miniclip.com, full of free games that you can download or play online. I've spended some time browsing & trying the games listed inside. Most of the games are fun to play, you can find almost any type. From classic arcade-style to advanced action shooters with cool 3D graphics. But there's something I have to mention: Before you start playing, you have to watch an advertisement without any option to skip. This is a bit annoying if you consider that the site is full of ads spread here in there. Is it so important to stand out for another?
Go ahead and check it out, then come back and leave a comment with your opinion, I'll appreciate it a lot!
Here's the link: Shockwave.com