Join us for the San Francisco Net Tuesday on September 9:
Involver: How Nonprofits Can Create Video Campaigns for Social Networks.
An OPML file is, in this case, a single file you can use to subscribe to a number of RSS (definition) feeds all at once. This means that with one link you are subscribed to all future content from selected sources. I think that selecting a handful of key feeds in certain topic areas and offering those to other people is going to be a powerful way that information-overload gatekeepers help the rest of the world find and easily subscribe to the best news sources available. In this sense everyone who puts together OPML files is like an editor of anthologies; only the authors that the editor selects provide ongoing, dynamic contributions.
Without further theoretical ado, I'll tell you how to use these files and then tell you what I've put in them.
In some RSS feed readers you can just copy the links below and paste them into the Import OMPL (or Subscriptions) by URL field. In others you may need to download the file connected to these links and import it from your computer - no big deal there either.
In Newsgator, for example, follow these links: Add Feeds, URL and Import, Import, enter the linked URL of your choice below.
In Bloglines (where it doesn't end up looking nearly as pretty as it does in NewsGator by the way) take the following route: My Feeds, Edit, Import Subscriptions (at the bottom of the left pane). Users of other systems should all be able to figure out how to import OPML files, except maybe MyYahoo users for whom I don't know how feasible this will be. You can delete any of these feeds individually at any time, too.
To subscribe to these groups of feeds what you want are the links or files behind the subject heading links. To see what has already been delivered by the individual sources, click on their particular links.
Let me know if you have any problems with this. I am just learning how to do this and I'm sure it could have been done more gracefully. Info on how I made these can be found in this post.
So here they are...

Contains feeds for:

Not local, not issue specific, not neccesarily from any particular perspective but big picture, popular news from folks who focus on environmental issues.
Contains:

Feeds from non profit groups using Web 2.0 tools to share news about the non profit sector.
Contains:
Three of the most moving and informative news audio shows online.
Contains:
(video blogs)Contains:
TagCentral Tags: OPML, RSS, blogs, podcasts, vlogs, multimedia, sharing, feeds, Web2.0, nptech,