Little free advise on Blackcoin - Party is over now due to recent news on Blackcoin (which by the way have just insanely poor 1% annual interest, much less than You can get in one day even if You are blindfolded deaf single handed monkey..) I would get rid of all of my blackcoins if I had any before more ppl notice the 120+ BTC flaw:
http://www.cryptocoinsnews.com/2014/03/25/cryptorush-loses-millions-of-blackcoins/

If You get onboard to Heavycoin with my previous 2 days old advice, You made about 65% profit so far (but its not over yet, so hold still and You won´t regret). If You are happy with that, You can tip me on following adress. And here is my next advice - for longer term grab and hold some MINT or ECC coins (as they are predecessors to BlackCoin but with stronger support* and comunity). If You want another short term profit advice with probably 300% in 2 weeks (in worst case) or more like 1k+ in about 2 months, You may want to invest in.. Ohh.. My memory is quite fuzzy now.. Maybe some tip to 1J8Z5dJuv1rSGQpdPC2zuAsToLgkJiVeg7 with PM about it will refresh my mind ;-)

* BlackCoin was good / cool somehow, but was killed by sudden hardfork (which was made because of "unpredictable" technicall difficulties and was not announced in reasonable timeframe to important persons involved).