Trying to sell my house!! (costa de la luz)

[lcr]

Hi there, I have just come across this forum, and it looks pretty good. I am trying to sell my house on the costa de la luz, does anyone know of any good agents/sites to advertise with. I have got it with a few local agents, but haven't really had any luck.
We moved back from Spain last year, and would really like to sell, so we could start up again back in the uk.
I am currently advertising for short term holidays, and am also thinking of maybe a long term, but then I wont be able to have potential viewers. Any ideas of the best way to sell?