I always go on these:
link (this site's great for speedy updates, but it's been known to lag and have formatting issues; however, it's also great for finding new ऐनीमे to watch -- my first choice for finding new series)
link (I प्यार this site because, it doesn't have just episodes for streaming, but downloading too. An AMV maker's absolute best friend! Also, this site's not too bad on speedy अपडेट्स too)
link (this is the site आप go to when आप JUST CAN'T find the series online. The selection of series on this site is so amazing! Problem is the pop-ups and ads, but if आप get passed it, आप have a perfect स्रोत of online anime)
To a lesser extent, there is also:
link link and, when all else fails, I go to a गूगल video search, but it'll probably give आप the same लिंक्स I gave you.
^_^ I hope that helped~!