Would you recommend creating a website using e lance?

Nicer homes usually bring a lower %, where C/D/E class neighborhoods will bring higher.

After reading the free e-book, I would like to get back into real estate.

That goes from the Schedule E's to the S corporations, etc.,  You better know what your doing. 

For example, professionally, we should assign each transaction as a Schedule E, and get into all that big heavy duty stuff using Schedules and depreciating, etc.  

As @Brandon Turner said the pod casts are great for learning the fundamentals.  

Because more information about market fundamentals and conditions is now available from such sources as Real Capital Analytics (RCA) and NIC MAP, the availability of information has increased investor understanding of the sector.

Many of these fundamentals jive with frequent BP topics:-Make your money work for you; not the other way around-Diversify income streams and assets-Learn to play the tax game and measure what you keep; not what you makeWhere I think BP tends to stray a bit is on topics like these:-Focus-Patient money-Raise moneyI constantly see threads and hear discussions from people that measure vanity metrics like number of doors held.  

Rich Dad Poor DadRich Dads Cash Flow QuadrantRich Dads Increase your financial IQThe Real Book of Real EstateThe ABC’s of RE InvestingThe ABC’s of PMRich Dad RE Tax AdvantagesThe 10X RuleThe E-MythThe 4 Hour Work WeekBiggerPocketsPodCast -I hear #136 is exceptional!

It's up to you as an investor to decide which it is.Price run-ups, even rapid ones, are not automatic indicators of a 'bubble' per se, though this definition seems to be trending over the last few years, rather a bubble is significant price appreciation without the fundamental substance to support it.