I have a Google account for work, and another personal account. I have on more than one occasion clicked the bookmark I made in my work folder and been confused by not seeing (e.g.) an important meeting on my calendar.
Only when I realized that Google treats the two calendars as identical resources (they have the same URL) did I understand what was going on.
Is there any way to correct this? Is there any way to bookmark my work calendar(s) separately from my personal calendar(s)? (Same with my e-mail?)