In line with Twitter’s weekly Charity Tuesday, Give A Brick are today proud to launch their first ever Twitter Challenge. If you’ve been here before, you’ll know that we think we’re probably the first charity to ask people to give a brick (i.e. just £1) then ask their friends to do the same. With zero budget for overheads and advertsing, we’ve been harnessing the power of the web to tell our friends (and their friends ) about our unusual approach but we need your help.