Our CodeAbbey is mostly oriented for beginners. So if you soon will find the problems here are too simple for you (or the place is too dull overall) you may want to try several other resources.
The following two sites held regular online contests:
3
short contests (Single Round Matches giving
you 3
tasks to solve in about 90
minutes) monthly
and one Marathon (contest longing for few weeks) each few months, along with other industry-related contests which
propose small money awards usually.3-5
short-contests (giving you 5
tasks to solve)
each month along with several other events (some with monetary prizes) probably most intensively used place
dedicated to Competitive Programming over the whole world wide web - here you can also find good community
support and news related to upcoming competitions, trainings...These places have also big sets of programming tasks and online judges to check your solutions, but usually they have no programming contests:
30
programming languages are allowed for submitting solutions - backed by Sphere Research Labs, Poland;And here are specific problemset sites not dedicated to competitive programming:
Few interactive tutorials helping to learn some languages: