Investing in the stock market is the surest way to build long-term wealth. Diversification among companies, industries, and types of securities is the key to ensuring that investors can reach their goals. Technology stocks can provide a boost to returns, as these companies are often on the cutting edge, making groundbreaking discoveries that change our everyday lives.With that in mind, we asked three Motley Fool investors to choose top companies they believe to be offering compelling opportunities in the tech sector.