While some of us want to say tehillim all day for everyone in Eretz Yisroel, we are unable to do so. Therefore, what if we all sign up to say tehillim at a different time of day so that the entire day can have someone saying tehillim. Just choose a time that you'll have a minute, sign up, set an alarm and say a perek of tehillim then.
*This is just for today, everything is in New York time and it resets at midnight