Krunch.us - lets you put multiple web links in one place with a single URL.
Castle.so - gives out a simple way to upload and share files online with drag and drop file.
Video 2 Ringtong - a web based application that allows you download audio from Youtube, and makes ringtong for cellphone.
Flick Storm - an image search site that search public photos from Flickr.
Big Five Glories - if you like to watch classical movie, go ahead, this is a right place for you.