A lot of companies get by with ad hoc procedures for determining who has access to what on the network. It's definitely a compliance issue that has drawn the attention of vendors. A lot of vendors are investing in identity management solutions, a market that Forrester Research thinks will grow to $12.3 billion by 2014. Oracle just announced an upgraded versions of its identity management software. At some point, you'll have to figure out how this fits in your IT plans. Article