Stockchart.com is my charting service of choice but it has some limitations
In the free service the charts are only good for daily charts (there are intra-day charts in the subscribed service but I am not sure if Ichimoku charts are included as intra-day there)
Also the stocks are ONLY for Canadian and USA stocks. The OP has not said what stocks he is interested in and being Norwegian if if he is interested in European stocks then StockCharts.com will not be very useful.
The Ninja trader forum only has one indicator that is close to being accurate and worth a try. It does project into the future, but it has no alerts. It is the indicator called IchimokuCloud.zip One other drawback is that it does not have outlines of the Cloud, only the cloud itself without the borders. Still, it is best one out there that is free. Good Luck.