Yes, Block.one has a venture capital arm named EOS VC where they fund new projects that build on the EOSIO protocol:
EOS VC invests across sectors, and focuses on projects that have the highest likelihood of delivering value through the application of blockchain technology. This includes: social media, gaming, entertainment, fintech, healthcare, supply ...
Did they sell all the ether? How much is left?
Yes, all ether was transferred from the token sale contract, some of which ended up on Bitfinex.
How much usd funding do they have to support themselves?
How is block.one allocating their funds?
Block.one is not a publicly traded company, so most of this information is not public. However, you can ...