I have a number of busy RSS feeds for which I only find a subset of the messages to be of interest to me. Is there a way to configure Google reader to only display certain RSS items that match particular keywords rather than giving me the entire feed?
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I don't know of a way of doing it directly in Google Reader however Yahoo have a particularly nice rss/atom feed processing engine called Yahoo Pipes. This allows you to pull a number of feeds from other places apply translations and filtering to them, and then re-publish the modified feed. You can then set Google Reader (Or any other preferred RSS reader for that matter) to subscribe to the newly published Yahoo Pipes RSS feed. The interface is drag-n-drop. You literally build "pipes". Plus there is a full gallery of other peoples published pipes that you can use as examples, or even as components to your own pipe.
Yes! You can do this in Google reader, but I don't think you can set up as a permanent search.
- If you have a group of feeds you want to search through, bundle them together under a single folder/tag. Like group all your tech news feeds you read into "Webtards."
- Then you can use the search box at the top of Reader to search for a keyword, and filter it to just the feeds in your tag/label. So you can search for "Twitter" in your group of feeds "Webtards" to see everything your webtards are saying about Twitter.
Reader also gives you the ability to search within an individual feed, which is also helpful. So if you subscribe to the TechCrunch feed, you can search for "Twitter" within the feed "TechCrunch" and get back a bunch of articles from MG Siegler, God bless him.
There is not a way to save a filter within Reader, but you can perform a search (you can search within a folder/tag) that you would like to save and you can copy the url from your browser's address bar or save it as a bookmark. When you would like to see those results again you can click the bookmark and the same search will be run.
Take a look at this greasemonkey script from PostRank, http://labs.postrank.com/gr. It allows filtering of feeds in google reader based on its rankings. If you don't find their rankings useful, then their greasemonkey script itself may potentially be useful in determining how to create your own script.
Unfortunately Google Reader is not evolving much.
You'll have to use a third party tool.
I use Feedrinse. It's free and is simple enough.
You can create a feed out of it. Just put your keywords into it and the site, e.g.
scienceblogs.com evolution biology
Afaik you can use pretty much all google operators for google alerts