I think the question should be "what services can I rendered to make 0.1btc par week" to earned 0.1btc is easy if you have any digital skills such as video or audio editing, forex trading, photoshop and website design. You may have the skills but you also need dedication and commitment to work things out.
Skills is needed and crucial to get that kind of amount or more but yet we still need to do some research to get an outlook into the possible circumstances if our services will really give us a good amount of bitcoins. Aside from having skills we must have some resources to be able to make our services more attractive to clients and can be competitive.