I recently heard about Instapaper on the Stack Exchange podcast. It's a service that makes it easy (they say) to save web pages for reading later, possibly on another machine or device.
I've been doing that for some years now, using the "File/Save" feature
in my browser. Last year, this became lots better, when I found the
MAFF add-on to
MAFF saves the page, and any images it includes, in a zipped file, which
can later be viewed directly in Firefox. Or Iceweasel, in my case.
It's much handier to have everything in one file, rather than a
file plus a
foo_files/ directory, which is what Firefox usually saves as.
This does not make it possible to, for example, read the page on my phone, since I've saved the file on my laptop, but I can live with that. However, the complete autonomy of this solution is much to my liking.
I have a "read and review" folder for things I need to read. After I'm done with something, I can easily delete it. If I want to keep it permanently, I can move it to an archive folder.
I haven't got a solution for full text searching through my growing archive of MAFF files, but I'll figure that out some day, too, I'm sure.