What an excellent idea, there are so many services that remix (filter and splice) feeds, but it requires you to register and get going. Now this is so fast with a bookmarklet I may be more prone to filter feeds, one click away, you can’t complain about that.
My blog has category feeds, just add “/feed’ to the end of a category URL, I wonder if you could filter for terms within a blog category, your category feeds would probably have to be listed as auto discoverable in your source code. If this was the case I’d love to go to a blog and be able to select category feeds to splice and maybe also filter.
Here is OnePipe in Marjoein’s words:
“OnePipe is a browser bookmarklet I created to filter any feed by topic. It’s simple to use: install the bookmarklet, navigate to any website whose feed you’d like to filter and click the OnePipe button. You’ll be prompted to enter any topic or word after which OnePipe will generate a custom feed that only contains those items that match your keywords. The exciting part about OnePipe is that it can be used over and over again.”
The bonus is you even get to preview your new feed in Grazr.
“…to subscribe to your newly created feed in your feed reader, grab the entire URL off the Grazr address bar. Select the URL, copy it to the clipboard and paste it into the dialog box that your feed reader provides for new subscriptions.”
I’d also like to be able to subscribe to my RSS Reader right from the bookmarklet, like the RSS Preview Blum. I wonder if you could subscribe to IM or SMS from the bookmarklet by hooking it up with Rasasa, Blastfeed or ZapTxt.
Coming soon: field filtering eg. within the title, category, author, etc…
Also included is the AllButPipe bookmarklet the filters out terms…how about this in the same bookmarklet?