Pointing to parts of HTML and other Content.

Hello Annotation People,

I'm writing on behalf of the WAI-ER Working Group ( 
http://www.w3.org/WAI/ER/ )  we are currently defining EARL (evaluation and 
report language) which has a requirement to point to content within 
document, this is a similar but much wider requirement that annotea fulfils 
with its context property.

We are currently working on defining a number of types - xpointer, xpath, 
snippet, line/char, byte offset and others, whilst keeping the scheme 
generic.

Do you annotea folks think we should do this within EARL, or should we have 
a seperate schema and namespace that the annotea folks could re-use?  and if 
so would you like to come and help us build it.

I will be posting the example schema here and  ask for review later too, but 
if you have any views on namespaces or re-use then please let us know.

Cheers,

Jim.