Useful websites

Investegate : For up to the minute news releases: http://www.investegate.co.uk/Index.aspx

RNS alert : Receive instant alerts whenever your chosen company releases news - by SMS, twitter, or email. I get the twitter alerts and the service is fantastic - has sometimes enabled me to trade a price before the news gets everywhere. http://www.rnsalert.com/

Shareprice : Free live streaming if you trade. Useful for creating portfolios of your shares and usually pretty accurate on closing prices (compared say to LSE which is often wrong) http://www.shareprice.co.uk/

Oilbarrel: good for quick overviews of companies, sometimes find companies worth further research. Used to have some broker reports on the site although seems to be less of them nowadays http://oilbarrel.com/

Minesite : Sister site to Oilbarrel, but for mining companies. The clue is in the name :)  http://minesite.com/

Proactive : share site http://www.proactiveinvestors.co.uk/

LSE : Bulletin board discussion and track sentiment. Good for the occasional laugh but never take any discussion for fact - DYOR is the rule here! http://www.lse.co.uk/

DiscusstheMarket DTM : streams LSE and ii together to watch BB chat as it happens in case that's your thing. http://www.discussthemarket.com/

ADVFN: Another BB site with lots of data, graphs, reports etc. A staple for traders and investors. Down side, the BB comment can be full of posters with screws loose. But some good research and comment at times.  http://uk.advfn.com/cmn/fbb/thread.php3?id=20001074

Shareprofits: You sometimes need to take their "predictions" with a pinch of salt but useful for up to date comment companies and snippets of sentiment  http://www.shareprophets.advfn.com/

Sharesmag : good for general market news and coverage of bigger cap companies
 http://www.sharesmagazine.co.uk/shares-news

thefiringroom : Roland Heads financial blog which I have found to have balanced, useful overviews of various E&P and mining companies http://www.thefiringroom.com/

The El1te Trader : another blog site with some good tutorials and company reviews
http://www.theel1tetrader.com/

The Motley Fool: Discussion and advice http://www.fool.co.uk/

Let me know any others you use and I will add to the list thanks.