Netvibes Keep all of your Web tools in one place including ". . . widgets, websites, blogs, email accounts, social networks, search engines, instant messengers, photos, videos, podcasts" etc. Visit the link: http://www.netvibes.com/

Dipity
A synchronic and diachronic timeline-streaming aggregator with social sharing, Web 2.0 features.This example features the wolves of Yellowstone

http://www.dipity.com/timetube/YouTube_Yellowstone_Wolves