Insurance group Brightside shares have dipped after management admitted the life insurance arm was not growing as fast as hoped. This weakness offers a good buying opportunity. The life business should pick up once economic conditions improve, but it is anyway a small part of the group. Elsewhere, Brightside's white van business should also gather pace when the economy picks up while its car, motorbike and other internet offerings are expanding fast. Management own more than 40% of the shares so they are clearly motivated to make the company do well. Buy says the Mail on Sunday.Mobile phone software group Velti plans to cancel its Aim membership in April. Existing investors have two options. They can either transfer their shares to America, where Velti is now listed, or sell them in the market. Swapping British shares for US ones is a logistical headache. Investors should sell now and put the money into something more accessible.Polo Resources is a high-risk play on the mining sector - but one that allows investors to get in on early-stage projects at an attractive price. It currently owns about 30% of Caledon Resources, the Aim-listed coal group that is in a bid situation, and about the same stake in Bangladeshi-focused coal group GCM Resources. Caledon accounts for 53% of Polo's market capitalisation, but it is the group's smaller iron ore investments that look exciting for the long term. Polo provides investors with the chance to get in on some iron projects at a very early stage - with exposure to coal projects in Bangladesh through GCM. The shares are a buy for the more speculative part of a portfolio says the Telegraph.Interim results from Go-Ahead Group, the rail and bus operator, confounded the critics when they were released on Friday. Record numbers of passengers on its service and a beat from the rail group resulted in an upgrade to full-year expectations. Forecasts are likely to rise following Friday's statement and the group has proved that it is trading strongly. This means that the dividend looks secure - despite a difficult 2011 and 2012 in prospect. The shares are trading on a June 2011 earnings multiple of 12.3 times, falling to 11.6 in 2012, which looks attractive says the Telegraph. Buy.Energees Investments has offered 38p a share for Regal Petroleum as it attempts to obtain a 70% stake in the group. The offer has been recommended by the board. The company plans to keep the company listed in London, so many investors have decided to hold on to see how the situation develops. With companies such as Regal, things can easily go wrong. Sell 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.