(ReadWriteWeb) — First off, you do not need a PR firm. The retainer is usually not worth it, especially for a young, growing startup because your product is still drastically changing and because your conversion rates are probably very low. As a startup that is looking to innovate in your industry, it usually does not make any sense for you to allow someone else to communicate your vision. PR firms do not always get it. Even with stellar communication skills, only you and your core team really understand the message and the vision.