Bitcoin Forum

Hello all.

Yesterday I got my Bitcoin wallet and I also downloaded the file for mining, GUIMiner.

Searching for a pool to start mining, I found Slush. For some reason I don't know, after I've registered, the site of Slush doesn't let me login even if the username and password are correct. What should I do? Do you know other pools that could be useful for a newbie like me?

Moreover, what username and what password should I write on GUIMiner to start mining? And what does mean the phrase "accepted shares"?

Hello  :)
First you must confirm your email of the new slush account .
On regular pools you must choose a username and password you want.
On p2pool nodes you must put your bitcoin wallet address as username and none or any password.

What are your miners? estimated hash rate of your ASICs? there are many mining software and each one is good if know how to use them.
Bitcoin.org is a good place for finding legit information, also in slush pool they give you what you need to enter in GUI Miner, just make sure you are not using the Demo account.

It's good to know that mining bitcoin needs cheap electricity and solo mining is no longer profitable, what you could do is to mine altcoins and exchange them with bitcoin.

GUIMiner is unmaintained software from an era when bitcoin was mined by your computer. These days bitcoin is mined with dedicated mining hardware called ASICs. You cannot meaningfully mine bitcoin with a computer by itself; the ASIC hardware is trillions of times more efficient than computers by themselves so you actually will end up using lots of power on your computer for nothing since you won't even earn one cent bitcoin mining for a whole year with GUIminer in the modern era.