As I complained earlier: mainstream Web 2.0 developers just don't care about international users. This gives opportunity for the local developers in non-English speaking countries as the following list illustrates:
digg.hu aka linkter.hu
linkter.hu (means "linkspace" and digg.hu redirects to linkter.hu) is tightly integrated into and has similar design to the first real Hungarian Web 2.0 site: blogter.hu (a blog farm organized by strong editorial control on its home page) The site runs a proprietary engine, and due to a massive online and offline campaign of blogter.hu, most likely it will establish a solid user base to provide Hungarian users with fresh links.
del.icio.hu
del.icio.hu is in alpha stage since the end of March, but the site just doesn't look promising. This site also sports a proprietary engine, and its owners were to develop quite a few extra features compared to del.icio.us. Maybe that's the reason why they failed to launch a feature complete site so far?
internetmedia.hu
internetmedia.hu: This digg clone has started in March just as digg.hu, but it is based on an open source CMS: pligg. Due to lack of a marketing campaign, chances are high that this page will not be able to build a thriving community.
book.mark.hu
book.mark.hu was launched in July and developed by the same developer as the above mentioned internetmedia.hu and based on the same concept too: Take an open source CMS (this time scuttle), translate it and start a new site on a domain name you already have. All in all this site has more chance to succeed, since its competition is quite weak right now.