L is employed within a startup organisation that has limited funds.

L is employed within a startup organisation that has limited funds. The organisation is a firm of lawyers specialising in all legal fields, such as family law, property law, commercial law and litigation. Due to the relative infancy of the organisation, and restrictions on funds, they have to be prudent with their choice of information systems. They have all the IT they need for staff but the agreed best way to build the business has been to focus on building their client and prospective client base. Which of the following should the organisation invest in to help achieve this aim?