http://www.freetech4teachers.com/2011/12/5-interesting-virtual-museums-and.html?m=1
This link is an a post from December on Free Technology for Teachers. I have recommended this site before and again I must reiterate what a fabulous resource it is for teachers.
Richard Byrne provides links to just about anything under the sun to use in the classroom. This link to virtual museums is definitely a keeper. He posted this on Twitter the other day and it caught my eye. I think virtual museums give your students that first hand look at authentic items. With budget cuts everywhere, field trips are not high on the priority list. Please checks these out.