Native American Sites in the City of Philadelphia is a superbly illustrated exposition of the historical development of Philadelphia, with a focus on those few surviving Native American sites which lie under the urban fabric. Lots more excellent Public Archaeology is available from the Philadelphia Archaeological Forum. Bonus link: Philly's lost creeks and streams. [more inside]
Waterlines is a new online exhibit from the excellent Burke Museum at the University of Washington, Seattle. It tells the story of the land underlying Seattle, one of the United States' most geologically active city sites, and of the human attempts to engineer this landform. Closely related are the archaeology of West Point and Coast Salish Villages of Puget Sound (e.g., read the story of North Wind and Storm Wind).
In 1987, the Caltech biomagnetist and paleomagnetist Joe Kirschvink gave undergraduate Dawn Sumner a rock sample [from South Australia] to study for her senior thesis. The apparent glacial origin of this rock lead directly to the theory that periodically the Earth has been thoroughly glaciated from the poles to the Equator: the so-called Snowball Earth events. A website dedicated to this theory includes detailed teaching slides, a FAQ, and many other resources on this interesting period in Earth's history.
Answers Research Journal is a new "professional peer-reviewed technical journal for the publication of interdisciplinary scientific and other relevant research from the perspective of the recent Creation and the global Flood within a biblical framework." Current Volume. Call for Papers.