I have an idea... it maybe a business idea or an idea of an open source project.
so, the idea is to create series of posters on popular programming technologies. For example, poster #1:
java, poster#2:
J2EE, poster # 3: Spring, etc.
Each poster will consist of 9 pages with colorful diagrams and tables. So you can hang it on a wall in your office or at home. There might be UML diagrams or some charts diagrams in different colors to make look attractive. You can use it as a reference card or to prepare for an exam or an interview.
There are some reference/cheat sheets
cards but they are so boring and unattractive. You cannot find and buy a colorful, professionally done poster on Java or Spring... I did google and checked amazon and dint find anything like this.
What do you think?