Having trouble viewing the email? View online.   www.asx.com.au | Login Feature story Time to buy BHP or RIO? Resource stocks are among the most challenging to value as profitability is often erratic, and forecasts are volatile, because of unpredictable commodity prices. Therefore, it makes sense to be conservative and insist on a large margin of safety when investing in them. PAUL ZWI of Clime Investment Management reports. In this issue Magic mid-caps Earn more income Super strategies Robin Bowerman on ETFs Dale Gillham's portfolio tips Find higher yield Market views ASX news Video Top mining tips Allan Trench, author Learn how to understand risk and value in the resources sector. Gold & returns Strong case for commodities in portfolios Tony Rumble, BetaShares See how commodity ETFs can enhance portfolio performance and diversification. Growth stocks Mid-caps are the sweet spot Boyd Peters, Contango Know the features, benefits and risks of stocks ranked outside the top 50. Interest rate securities Earn more income Ken Howard, RBS There are good reasons to own high-yielding preference shares. From the editor This month's Investor Update Tony Featherstone Spotlight on resources and smarter portfolio asset allocations. Survey results What do you think of Investor Update? Latest survey shows wide range of views and ideas. Video Issues affecting retail investors Elmer Funke Kupper, ASX CEO Learn about latest exchange developments and initiatives in this wide-ranging interview. Courses Getting started in shares This free online course provides you with basic information to understand the sharemarket and start trading. Asset Allocation Three rules to a great portfolio Dale Gillham, Wealth Within You need to consider the changing stages of life when allocating assets. Don't sit on super Nerida Cole, Dixons A guide to making earlier investment choices, and ensuring your retirement savings last. Comparing apples and oranges Michael Kemp, The Barefoot Blueprint Focus on a spread of possible portfolio returns, not just one.   Exchange traded funds Better returns, lower risk Robin Bowerman, Vanguard Use ETFs for extra diversification and stronger risk-adjusted returns. Where to find higher yield Christine St Anne, Morningstar Income investors should look at the wide range of ETFs. How to build a low-cost, diversified portfolio Doug Turek, Eureka Gain complete asset allocation through ETFs. Market watch View real time index values View all recent company announcements Top 20 shares by volume Recent listings Upcoming company events ASX listings Upcoming floats New listings Dacian Gold Boadicea Resources Krakatoa Resources Etherstack Mandalong Resources iCar Asia Shopping Centres Australasia Metals of Africa Windward Resources Victory Mines Reader information Subscribe Sign-up for MyASX Send us feedback Provide a comment or suggestion Unsubscribe Update your email subscription MyASX Logon to MyASX to access ASX services Change personal details Update or change your details Past editions Access previous issues of ASX Investor Update © Copyright 2012 ASX Limited ABN 98 008 624 691. All rights reserved 2012. Information provided is for educational purposes only and does not constitute financial product advice. You should obtain independent advice from an Australian financial services licensee before making any financial decisions. Although ASX Limited ABN 98 008 624 691 and its related bodies corporate ("ASX") has made every effort to ensure the accuracy of the information as at the date of publication, ASX does not give any warranty or representation as to the accuracy, reliability or completeness of the information. To the extent permitted by law, ASX and its employees, officers and contractors shall not be liable for any loss or damage arising in any way (including by way of negligence) from or in connection with any information provided or omitted or from any one acting or refraining to act in reliance on this information.