Hi Mohab,
I have the same problem. The only product I've found which could be a serious contender is
Linkman, made by the German company Outertech.
I haven't really kicked its tires because I don't like the look of it, it has an XP style that I find depressing. Also, the publisher does not seem exceedingly dynamic, Linkman does not play very well with modern-day high-resolution screens, and the product has not been updated for more than a year.
However, the last time I did a bit of reasearch, it seemed to me that bookmarks managers were a dying breed, and that Linkman was the last man standing. You could do worse than give it a try. It's very powerful on paper, there's a free version which allows 2 x 5 000 bookmarks whatever that means, and the professional version is dirt cheap at 25 $ / 20 €.
I do agree its a shame bookmarks on the desktop seem to have gone the way of the dodo. I have 15 000 of them, I use them intensively and I'm certainly not giving them away to the cloud. The old Maxthon I used was jolly good with heaps of them, then I transitioned to the old-generation Opera (ugly but good with bookmarks), and when Opera reinvented itself with Chromium I thought they were a joke.
At the beginning they did not even have any at all ! Then they corrected their blunder but still, if you had more than ten it was a joke.
I presume you use the modern Opera ? How many bookmarks do you have ? How is Opera doing now on that matter ?
You could try Firefox. That's what I'm using now. At the beginning, coming from Maxthon, I could not believe how crude they were in their bookmark management. They still consider it permissible to deliver a browser which does not sort the bookmarks ! You have to do it yourself, manually, folder by folder ! And you can't even search for a folder...
Fortunately there are extensions which make the thing a bit more tolerable : for bookmarks, I use
Add Bookmark Here, Auto Sort Bookmarks, Go Parent Folder, Manage Folders, Show Parent Folder, Sidebar Bookmarks Search Plus, and
Zotero (entirely another beast, look it up if you're curious, it's worth it).
A third avenue would be to experiment with software tools that are not specifically made for bookmark management, If you're the tinkerer type, and would like to invent you own solution. After all, there are few things more low-tech than a bookmark manager...
For want of a better solution, I have taken to open a big a dirty Word document in plan mode, everytime I start a project. Word will take happily everything you throw at it, short of the kitchen sink. I file into such documents at least as many bookmarks that go into my Firefox. I'm not saying this is the solution, but Word has hyperlinks, and any Web address you drag into it becomes easily clickable.
You also could look in the direction of humble hierarchical note-managers such as
Tree Line (sexy site, hey ?). You can save web links in there, annotate them, file them in a tree structure... I'm not saying for sure that what you want can be done with this tool, but it might be worth looking into it, or into similar products, if you have some time on your hands.
Anyway, good luck, and be sure to share the news if you find something interesting...