Want sound advice?
DON'T INVEST IN BITCOIN "STOCKS"
Know that should you decide to invest in any Bitcoin stocks, go in knowing that you will not get your BTC back. Out of all investments here, almost all were scams and failures. There's maybe two or three "investments" that sound legitimate, even then know that losing all your BTC is the most likely outcome.
1) ASICMiner: They've paid out 5x their IPO BUT it's been a dry spell for more than 6 months, with overwhelming competition along the way. Even AM Bulls are unsure.
2) SatoshiDice: It's sad that this is #2 but this had an ROI w/ IPO investors but burned all who bought in on the bubble; owner got pwned by SEC
3) None: That's how short the list is.
You want to make BTC? SAVE IT. Honestly, the old adage of "BTC saved is BTC earned" (modified but still applies) is your BEST investment. If someone offers you a "one-in-a-lifetime" opportunity, ignore them. By just holding your BTC, you will have a better rate of 0% gain when compared to almost all other "investors" with their losses.
If you still want to jump in the mud, I will repeat again: Go in knowing that you will lose your BTC. If you're ok with that, then read up because that's the only way you can minimize your losses.