creating common workspace asp.net ajax

here's feigned conditions i've wondering lately. suspect i have an interactive page combined asp.net ajax i wish churned users means manipulate during same time. best proceed say page's state? generally page comparatively ephemeral, quite need stored database?

as petrify example, suspect i'm implementing simple diversion checkers. server needs say state house during times. clients need check board's station periodically, need means broadcast changes board. players leave, diversion ends, house longer indispensable server dispose it.

i store all database, retrieving clients ask house update, saving server receives an update. nonetheless seems lot additional overhead.

what stationary variables? arguable enough/efficient adequate job? there another storage apparatus i use? distant outmost boundary asp.net good i should looking during an wholly opposite record i ever wish exercise this?

update:

one discerning update, i another spin answers. after bit research, here's i have far:

suggested controlling memcached exclusively store data. i fortitude works even multi-server environments, nonetheless i have remarkable few drawbacks:

1) memcached's site states it's read-heavy applications (which isn't, family normal web app), it's "unreliable." i haven't gotten distant adequate establish vicious characteristics (i.e. writes slow? there propagation delay?).

2) an doing rather tie concentration (storing event data), memcached site uses database behind cache, even nonetheless information does need persisted.

3) i have concerns workable memcached hosted environment.

looking during stationary variables, seem fast. aren't thread safe, nonetheless accounted for. however, internal workman process, i'm certain work bucket balancing web garden.

finally, there during slightest doing an (very identical example) uses database back-end. repremand caching, competence only "good enough."