When accounts are set up normally, you visit the site, login, and Flock recognizes this and stores your account information. To get Flock to recognize your second account, you could try logging out, then enter the info for your second account. Flock may pick this up.

An alternative is to set up the blog as a "Self-Hosted Blog." In the Accounts and Services sidebar, in the Blogging section, click the Self-Hosted Blog option and enter the details for the other account. Flock should be able to detect that this uses the Livejournal API.

theoretically it'd be possible, but it'd be dificult to implement because of cookies

I was thinking the same thing but thought perhaps Flock would create a new instance or Mozilla session for each account. It was just a pie-in-the-sky kind of question and since it is touted as the Social Web browser I thought maybe the feature monkeyed it's way into the code somehow. Thanks for the response.

I am able to add both accounts to the sidebar. Let's say they're accounts A and B. I can log into A, add it, logout. Then I can log in as B and add it to the sidebar. Then, if I click on the A account it will open the Livejournal page but still be logged in as B.

The answer would be to log in and out every time I want to change accounts but I'm trying to avoid that. What I've done in the past was keep Safari logged in as A, Firefox as B, but was hoping perhaps Flock had some secret sauce to allow them to co-exist in a single browser. Thanks for the response.