There are a number of websites where you can get images, graphics and photos for free that can in most cases be used for commercial applications under a Creative Commons License. These include: Pexels and Pixabay.
AXIS is a venture capital fund owned by the Instituto de Crédito Oficial (ICO), a state-owned bank. It manages or actively participates in four funds:
FOND-ICO Global - promotes the creation of VC funds investing in Spanish companies at all developmental stages.
FOND-ICOpyme - provides finance and long-term business vision for firms' expansion plans.
FOND-ICOinfraestructuras - participates in projects involving transport infrastructure, energy, social aspects and services.
Fondo Isabel la Católica - provides equite to Business Angels and other non-institutional investors to promote the financing of innovative companies.
The local Chambers of Commerce in Spain (Cámaras de Comercio) offer free business advice and support for entrepreneurs and may also offer financing grants.
The Information Centre & Business Setup Network (Centro de Información y Red de Creación de Empresas -CIRCE) is an online portal that makes it possible to setup various forms of organisation online.
The office for small and medium sized businesses. May provide financing grants depending on type of business.
Enisa provides financing lines to small and medium sized Spanish companies with innovative or transformative growth prospects.
Invest in Spain is a website geared towards outside investors interested in developing their business in Spain but has some useful. albeit high-level, information for anyone considering starting a business in Spain. It also includes a comprehensive Guide to Business in Spain. Information is in Spanish or English.
Elements of a Business Plan - Article from Entrepreneur Magazine
The Spanish Economy - Government run website that provides information on the overall economy and public finances.
Instituto Nacional de Estadistica - National statistics office with a wide range of statistics and good coverage of macro economy and tourism industry.
DataComex - Spanish and EU trade data.
Funca - A think tank that provides sectorial analysis reports
APPA - provides data on the renewables industry in Spain