Similar to the existing daily challenges that every player receives 3 of each day after server reset, each Corporation/Alliance would receive 3 daily challenges and 1 monthly challenge. The daily challenges could be things such as mining 10,000,000 m3 ore, defeating 5,000 NPCs, or scanning 1,000 cosmic signatures to 100% (make sure re-scanning a fully scanned signature does not count). The rewards would be around 2x or 3x the amount of skillpoints/evermarks typically given from daily challenges for each person that contributed at all to the corporation/alliance’s total (no need to split the reward, as long as people who didn’t even log in aren’t also benefitting).
The monthly challenge could be PvP related (# of player kills) or potentially related to manufacturing or station usage in some way.