It's more convenient to keep tabs open. With Tree Style Tabs on Firefox and Orion's vertical tabs I can retain the relationship. The browser generally keeps it cached so even if the site goes offline I can read what I need to. If I have a form partially entered, I can resume it. If the page has infinite scroll but doesn't update the URL, I can stay where I was. Some sites tie resources to a particular session so resuming from a bookmark won't get you to the resource anyway.
But, I can also find things faster if they're on a pile on my desk than I can if they're put away in a drawer so I'm sure it's different for everyone.
As for tooling, I think browsers just aren't very good at bookmark management. I find the sidebar for bookmarks borderline useless, but a tree of tabs in the same space is quite efficient for me. The bookmark manager isn't much better. We can use folders, but not really have the rich links the web was designed for. I often have both the HN discussion and article open with either a parent-child or sibling relationship in my vertical tabs. That's not easily replicated with bookmarks.
The other tooling issue is tab management isn't great. Chrome's shrinking tabs is terrible HCI; you can't read them and they become harder to click. Finding a tab can be frustrating. It's often easier to open a new tab to complete a task than go hunting for the one I want. Pinning tabs doesn't work great with multiple windows and seeing just the favicon isn't super helpful if you need to pin two pages from the same domain.
Between the tabs I keep open because that's how my brain works best and between tabs I get stuck with because browsers haven't provided better tooling, it's easy to grow into the hundreds and then periodically cull them.
But, I can also find things faster if they're on a pile on my desk than I can if they're put away in a drawer so I'm sure it's different for everyone.
As for tooling, I think browsers just aren't very good at bookmark management. I find the sidebar for bookmarks borderline useless, but a tree of tabs in the same space is quite efficient for me. The bookmark manager isn't much better. We can use folders, but not really have the rich links the web was designed for. I often have both the HN discussion and article open with either a parent-child or sibling relationship in my vertical tabs. That's not easily replicated with bookmarks.
The other tooling issue is tab management isn't great. Chrome's shrinking tabs is terrible HCI; you can't read them and they become harder to click. Finding a tab can be frustrating. It's often easier to open a new tab to complete a task than go hunting for the one I want. Pinning tabs doesn't work great with multiple windows and seeing just the favicon isn't super helpful if you need to pin two pages from the same domain.
Between the tabs I keep open because that's how my brain works best and between tabs I get stuck with because browsers haven't provided better tooling, it's easy to grow into the hundreds and then periodically cull them.