African Aura is very interesting because it has exposure to two commodities with a positive outlook. The company plans to split into two in the next few months, which is likely to lead to a re-rating of the shares.The two commodities are iron ore and gold. African Aura has a joint venture with Russia Steel group Severstal at Putu in Liberia. Last week, the company said that resources at Putu had more than doubled to 2.4bn tons of iron ore. The Russian group will invest $30m to earn a 61.5% stake. The group also owns 100% of the New Liberty Gold Project in Liberia, which is fairly advanced. African Aura is not one for widows and orphans and should be treated as a highly speculative - but promising. Buy says the Telegraph.3i Infrastructure is an investment fund that invests in long-term infrastructure projects around the world to generate yield. However, the company has investments in India too - which there is potential for capital appreciation over time. There are few forecasts for dividends this year, but last year's full-year payment was 5.3p, giving an historical yield of 4.6p%, which is very attractive given current bank rates. Buy for the income says the Telegraph.Shares in telecoms behemoth BT are now back at the level they were before the financial crisis hit in August 2008. This is mainly caused by the progress the company has made on the biggest issue for investors - its large pension deficit. The shares are still yielding a solid 4%, rising to 4.5% next year. The rating on the shares remains buy for the yield, says the Telegraph. The market did not like the latest results from Diageo, the maker of Johnnie Walker whisky and Smirnoff vodka, but they weren't actually that bad. The company's guidance for 2011 is to "improve on the organic operating profit growth we delivered in fiscal 2010". In 2010, this figure was 2%. The shares have had a good run and following the slightly disappointing statement are now a hold, down from buy, says the Telegraph.Please note: Digital Look provides a round-up of news, tips and information that is impacting share prices and the market. Digital Look cannot take any responsibility for information provided by third parties. This is for your general information only as not intended to be relied upon by users in making an investment decision or any other decision. Please obtain a copy of the relevant publication and carry out your own research before considering acting on any of this information.