RSS and web bookmarks import

First about RSS.
A large number of people use RSS readers (I'm talking about offline readers). Personally, I use FeedDemon. Than they are not satisfied with the Google Reader, with the Yand ribbon - with the design, and with the fact that it is easier for me to click and view the tape already on my computer. And then the question arose, and someone uses the accounts of portals that provide synchronization of RSS-feeds? FeedReader has its own, but it's money. And I would like to know how you synchronize RSS feeds? (ie, what they read and what they did not read). Because taking advantage of home, you get RSS feeds, read them and calmed down. Having come to work (if of course there is free time for reading RSS feeds, or if it is necessary for work) you open the RSS reader and it sends you “new” topics again, although at home you already read them. I want to synchronize through the web.

Who knows what services?

And a little about Favorites.
It's a little simpler here, there are a lot of portals providing storage for your bookmarks. But I myself did not rummage in search of options, and the options I am interested in are the following:
')

In which such portal (to store your favorites) is it possible to synchronize bookmarks with Opera (and FF)?