Seb's probably already ahead of me on this one, but this sounds a bit like the interests/workflow article I wrote a wee while back: http://evolt.org/article/evolters/20/57758/index.html The recipient specifies what categories they're interested in & gives permission to receive emails. The person posting to their blog marks it up with the categories (nb, these needn't be the same as the BetterThanBlogging(tm) collective blogs) and publishes it (ie moves the workflow on). The system sends an email to everyone who's registered an interest in one or more of the categories and who have given permission to receive these emails. Shouldn't be too hard to extend with a) Author matching (inclusive or exclusive) b) Adding simple make-clicky links to update your profile, rather than necessarily having to manage via checkboxen. And if we're doing the make-clicky links, there's probably no harm in (a) only showing the link to authenticated evolters and (b) substituting "You could get this mailed to you - join evolters" for everyone else. Cheers Martin To: cc: Subject: [theforum] Evolters ideas Isaac wrote: We've already discussed the mess of blogs with categories that produce evolters.org threads (travel, food, etc). I thought that something like evolters Galleries could be cool where someone suggests a topic, and that week/day, everyone who would like to participate, contributes a photo on that topic (Sunset, Macro, Funny-looking person, etc). Also, it might be possible to check a box when posting to your blog to have it automatically submit the link to [evolters] -- that might save Madhu some time... And then perhaps tools that unite people with similar interests/location.