A good portable bookmark format, or an open API, accessible from web browsers could really help (me). I bookmark liberally, from different web browsers on diff

A good portable bookmark format, or an open API, accessible from web browsers could really help (me). I bookmark liberally, from different web browsers on different devices. Sadly I still haven't gotten round to aggregated that data. If I could dump the last days bookmarks to file quickly and easily, I could probably mock something useful up.