I am working on a social networking platform using a database wrapper released under GPL. I'm fairly new to using open source software, so I'm not sure what would require me to release my source code.
From my understanding, if the code is modified and distributed, the modified code must be released. I am planning on adding to the db wrapper, and the social networking platform will be a public, for-profit website. However, since I'm not distributing the actual code itself, will I need to release my modified code?