Another approach that does not show up in comments here is to use a reference manager, such as Zotero. It integrates nicely with browsers, so that saving webpag

Another approach that does not show up in comments here is to use a reference manager, such as Zotero. It integrates nicely with browsers, so that saving webpages or pdfs is only one click away. Data is stored locally, so if a resource goes offline, you will still have access to it. And it has full-text indexing and search, so you can lookup terms from pages that you previously stored, even if you don't remember the metadata.