Here are the top ones: Airbnb, VBRO, Booking.com, and Direct Booking on a property website. 

Fellow Airbnb hosts, what’s been your biggest challenge with managing your property?

Ive been in contact with a real estate investor friendly realtor I was matched up with through the bigger pockets website.

(especially for those involved on this website)The reason I mention if it matters on this website is because most are real estate investors(long term buy and hold) and will most likely operate at a tax loss which doesn't have an impact on taxes.The second point is, will you invest or not invest in a good investment because of what your tax rate is?

Some websites specialize in off-market real estate sales, whereas others, like Zillow, have listings for “for sale by owner” (FSBO) sales.

I like the Bakerson website.

I just attended the Bigger Pockets Conference and I discovered there were many books you can obtain through the Bigger Pockets website that might help you in your journey.

Only had a website link4.

If the bottom insulation of the home is torn and the skirting is not properly maintained, it can cause a host of other issues, like pest and moisture problems.Additionally, if the foundation is not sturdy enough, situated correctly, or on a concrete slab (permanent foundation), a mobile home’s support may sink slowly into the earth over time.

Post the property on websites such as facebook market place, craigslist, or apartments.com.If you're willing to spend money you can pay for local ads or marketing campaings.