I want to give you some tips for 'DIY maketing - how to get started', but honestly the first tip I should really give you is DON'T! Whether you are a bueinss or a not-for-profit/charity, you are playing with fire when you try to save money on marketing and think you can do it all yourself. Unlike building a desk yourself, where you can see if the legs aren't even and the surface is not smooth, with marketing you often will not realise the imperfections. The damage can be hidden. You don't know for example exactly who is coming to your website, made a decision that you are not what they are looking for and gone on to tell others of the bad experience.