Web Assistant 

WebAssistant - Proxy Offline Browser is a neat trick. By passing all your web traffic through WebAssistant, you instantly and transparently build a copy of all the pages you visit - so they're yours to surf offline whenever you like. There's no difference between surfing the web and surfing your archive; you can even use your bookmarks or search your pages offline when you don't have a network connection. When online the proxy updates your cached web pages and adds new pages automatically. This feature distinguishes the utility from most other offline browsers.