Invest Gold - Invest For Future is a mining company for make profit from Bitcoin because it uses the Scrypt algorithm.
Litecoin is another cryptocurrency using the Scrypt algorithm,
and while this makes Dogecoin different from Bitcoin,
it is also similar because it still uses Proof of Work as its consensus mechanism,
and this means anyone wishing to mine Bitcoin needs a computer capable of doing so.
Because Dogecoin is based on the Scrypt algorithm the Scrypt
ASIC miners used for Litecoin can also be used to mine Bitcoin,
however this isn't too common since mining Litecoin with the
expensive ASIC rigs is often more profitable. In fact, these days most
Bitcoin mining is simply a by-product of Litecoin mining. Rather than mining
Bitcoin directly you are able to 'merge' mine, which lets you mine both Litecoin
and Bitcoin without any decrease in your hash rate.
A mining pool
Because the difficulty of mining Bitcoin has increased so
much in 2008 the only way to really compete is to join a Bitcoin mining pool.
A mining pool simply combines the hashing power of all the members,
making it far more likely for the pool to be able to solve a block
and receive the block reward. That reward is then split between the
members of the mining pool, allowing the pool members to generate revenue in
a faster and more consistent manner.
Before you join any mining pool,
and this includes Dogecoin mining pools,
you should investigate to see how the pool calculates rewards for its members,
what fees the pool takes, how secure the pool is, where the pool servers are located,
and how much hashing power the pool holds.
You might also look into whether the pool is specific to Bitcoin,
or if it also allows mining other crytpocurrencies.
Pools that mine a variety of cryptocurrencies can provide some flexibility for miners,
allowing them to switch to a more profitable coin if necessary. To get an idea
how profitable your Dogecoin mining might be you can use a mining profitability
calculator such as this one, which will also let you compare other
Scrypt based coins to know which one is currently the most profitable to mine.