In Malaysia there are two type of homestay offerings.
One type of homestay is a comfortable guest house that is rented out to guest by house owner for daily, weekly and monthly rate. This is a new industry in Malaysia and the number of house owners who have converted their houses into homestay is increasing by day. The location for this type of homestay is normally in town or well know tourist attraction places.
The advantages of a homestay compared to a hotel room is that the rate is much more cheaper and it's much more spacious. Plus, there is no strict restriction on number of adults allowed. You have more freedom and it will just the same as your house.
For another type of homestay, normally the guest house is located in Kampung or village surrounded by hills and padi fields.
You still need to pay for your accommodation and other extras, but you will have the opportunity to join the locals go fishing, preparing dinner or simply enjoy idyllic kampung life. This type of homestay experience is much more fun. One way to runaway from the hustle and bustle of the city life.
Whatever type of homestay you're looking for, you could find it at http://carihomestay.net . You could easily get in touch with the homestay owner to rent out a house/ room or simply arrange at trip to experience a kampung life.
For homestay owner, you could publish your homestay details, contact detail and location map of your guest house.