After learning a little about some of the new technologies ... any tips?

OBJECTIVE: Learn a little more about some of the technologies I'm familiar with but not an expert in: Postgres, Compass / Sass, Google Maps API, Twitter API and ASP.NET MVC 1.0, Flickr API

SITE: Just a fun CRUD app for my friends' addresses, followed by a page that has a map of where they live, the last five tweets and some of their flickr photos.

QUESTIONS:

• I like LINQ. I mean I really like it. Probably unnatural. How can I use LINQ and Postgres together with ASP.NET? Anyone have any experience? How about a good example? I mean, basically I just do simple inserts and queries here, so I don't need a lot of functionality. I would like to create a db repository and have some IQueryables.

• Compass documents seem terribly short. Can anyone point me to a good set of examples ... or is it just that simple? Also, who has experience? Any driftwood - is it even worth it?

• If I have, say, 50 friends and I want their last 5 tweets ... I will remove the API rate limit if I try to pull them all at once and update them all at once, so I don't run into network issues? Is it even worth it?

• Google is too smart for its own good. I don't really "get" the API docs. Can anyone give me a 10 second overview? This is not a "caplet"?

Thanks guys rock!

Edit - I'm also looking for general advice using any of these technologies!