To volunteer means simply, to be motivated, intended to promote good or improve human life quality and give one's time or energies to work towards a project or cause that you are interested in. In addition, it is considered as serving the society through own interest, personal skills or learning, which in return produces a feeling of self-Worth, instead of money. Volunteering is also famous for the skill development, to socialize and to have fun. It is also intended to make contacts for possible employment or for a variety of other reasons. Voluntary work falls mainly in three broad categories: (a) long term, paid positions; (b) short, medium and long term, unpaid positions; and (c) short term expeditionary conservation projects where volunteers are self-funding.
(a) Long term, paid: In this category, volunteers are usually sent to work on long term projects lasting for over a year in which the volunteer may almost lost contact with his or her old way of life. For these positions, professionals with qualifications, specific skills and relevant work experience are usually recruited, for example doctors, nurses, engineers etc., and they can receive benefits including a monthly salary based on the local rate, air tickets, insurance, lodging etc.
(b) Short, medium and long term, unpaid: These positions can last from anything between a couple of weeks to one year, that are suitable for many people, including students taking a year off, professionals taking sabbaticals to work on a specific project, individuals wishing to gain further "hands-on" practical field experience and so on. Usually, they must pay for their transportation to and from the project. In most cases, volunteers pay a monthly fee which covers living costs, project materials etc., which cannot be paid by the volunteer organization. Costs depend upon country and so on, but as a general indicator, volunteers may be asked to contribute between 100 to 500 GB pounds per month.
(c) Short term expeditionary eco-conservation projects: There are also opportunities for people who are limited by time, and wish to take part in conservation and wildlife surveying projects as an alternative to a holiday. Such projects are usually located in tropical and remote areas and volunteers are expected to be self-funding and to pay for the costs of the expedition.