I used flock when it first came out (www.flock.com)
Back then all it was was firefox slapped with makeup
The newer version I must say is somewhat better, in fact its a lot better.
it's totally a blogger's ultimate browser, packed with some really neat features which integrates with all the big web 2.0 social, blogging, bookmarking, networking and video sites.
Seriously cool RSS Handling and it integrates nicely into sites like facebook, del.icio.us, flickr, youtube and even photobucket.
It has a startup page which lets you view your feeds at one glance, and lists your favourite site and most viewed sites.
Flock also supports extensions, although there are not as many as firefox, but still alot of useful ones.
Flock's rss handling is far superior to firefox's.
Don't let the fact that flock isn't firefox perturb you, because it is, just on steroids.
I am not crazy about the search engine handling, flock uses yahoo as it's default SE, but that can easily be changed.
I like the fact that you can add facebook, urban dictionary and others to your list of SE's.
Once you have configured delicious, adding a site to your favourites is as easy as clickong the big blue star that appears to the left of the url in the address bar.
Once you set up your blog's intergration via flock, blogging about something you just found on the next becomes as easy and right clicking an image and selecting BLOG THIS from the context menu.
I am not way fond of the blog editor but it will do.
hmm...
I think I just found my favourite new browser