This coming weekend there's an event in Hampshire, UK, for fans of Acorn's computers and others (at least one Apple II is expected.)
Generally, you can keep an eye on Acorn-centric meetups
here. There are usually several each year, mostly towards the North and Midlands of England (Wakefield, Bolton, Manchester, Halifax, Leicester, Cambridge, Camberley...)
There's also
an idea for a Bay Area meetup (that is, California, USA)
And I see now one in BC, Canada:
ABUG Canada West.
And there are the
Dutch Atomic Techsats several times a year in the Nederlands. In fact, there's one this coming Saturday which might even have a video link to the UK event - an international multi-site meetup!
There are several Vintage Computer Festivals each year too, both in US and EU. Not sure what's the best central place to keep an eye on those. Perhaps
http://vcfed.org/wp/festivals/and
http://vcfed.org/wp/festivals/otherevents/I wondered if there are enough events to keep a sticky thread? Either way, please post here if you have pointers to other events where a 6502 fan would be welcome.