Wrapping your shares in an individual savings account (ISA) reduces your potential income tax liability and protects your investments from capital gains tax. A self select ISA is an equity ISA that will count towards your annual ISA allowance.
Online self select ISA services operate on an 'execution only' basis; this means you are not being given advice by the stockbroker on what you are buying or selling and are responsible for your trading decisions. You may manage your shares and portfolio online at any time. Trading with real time share quotes, the price you'll see is the price you'll get.
Updated November 2008
This does not provide a full guide to the whole market