(Like I think Craigslist is still one of the best websites on the internet, but for some people it's a total turn-off because it still looks like 1995).Capterra.com is a great site for research in this category (and business software in general). 

So if you have a personal booking website, then that transfer over no problem.If you have VRBO and AirBNB accounts, those don't transfer to the new owner no matter how it is registered.

For us, we only call people who have subscribed through our website and completed a form online.

Also, not very easy to use typical methods of valuation like comparable sales - there is no public tax assessor's website that you can just freely grab this from. 

I'm currently using a website that I created 4 years ago, posting vacancies by creating a page and cross linking it to a form in my website for applications.  

They removed all Ugro projects from main website.

The FMR on HUD's website are inclusive of utilities.

Some of their websites will probably explain everything you need to know.  

After doing more searching we found a bunch of investors they did this too and they have an F on the BBB website.

We have been around the bigger pockets community for over a decade now and have more 5 star reviews on bigger pockets than any company on this website in any industry.