Networking together as a body can only help us towards the blessings of Allah descending down to us. Unlike some people we shouldn't wait for the blessing to descend to us, rather we should do our best and then rely upon Allah's help.
Wherever we may be, we can always volunteer to help the Muslim Ummah. But the most befitting places to help is where the Ummah is calling for those able ones to physically/financially help, and these places we should try and exploit for you never know where your paradise lies. Only sincerity towards Allah can bring about the man in you to serve the Muslim Ummah.
The Prophet Muhammad (Peace and blessing be upon him) said: "The similitude of Believers in regard to mutual love, affection, fellow-feeling is that of one body; when any limb of it aches, the whole body aches, because of sleeplessness and fever."