The major driving concepts for this classification are (a) Firms (b) The practice and application of economics (c) Reasonable information value A significant expertise or core specialisation in economic disciplines is expected in this classification. Firms providing general business, strategic business policy, market research, mergers and acquisitions, financial engineering, expert witnesses, etc or public relations practices are not intended for listing here. General consulting firms should consider other categories even where a part of the firm has some specialisation in forecasting or economic consulting. Industry based consultants e.g. oil industry consultants, construction or building industry consultants, etc are advised to consider other business classifications, particularly if the core of the practice lies in other disciplines e.g. engineering, engineering management, geological issues. However there is adequate scope for consulting firms specialising in microeconomic studies in one or a few industry sectors to be listed here, and whether a listing is appropriate here (as against another category) will depend on the content of the site. Sites should provide a reasonable amount of information to the general browser. Sites that comprise very general claims to expertise without summaries of projects or professional staff would rank lower than sites where such information is provided. Sites containing promotional material or promotional slant to the description of services provided will be tolerated, however sites that provide information about issues, sample results, methodologies or solutions will receive greater preference. Sites that require paid membership or subscriptions to access significant amounts of the information on the site will not be listed (e.g. "teaser" headline links which exclude access to general readership for the information content) Sites predominantly featuring advertising links or graphics (relative to information material) will not be favourably considered. Sites with internal code which prevents browsers from back return off the site will not be listed. Firms that submit a further listing under a different domain for the same firm, when an existing URL is already listed may be dropped from the category - please note ODP guidelines against spamming practices.