SM-Votifier plugin will give your players ability to claim daily reward for a vote at serwery-minecraft.pl server list. You can specify what commands will be executed when user will receive a reward (for example you can give them some items). Rewarding your players will encourage them to vote regularly. The more votes you collect, the more visible your server will be. Reward can be claimed only once for a vote so it's limited for one vote for a day. We also restrict VPN users from making a vote.

Always up-to-date installation tutorial (Polish language only) can be found there.