Olande’s Blind Solvency Proof (inspired by Gmaxwell)
https://github.com/olalonde/blind-solvency-proof

Leaked Gox Code (PHP) and some commentary - Know PHP? Take a look and tell us your thoughts tomorrow!
http://pastebin.com/W8B3CGiN
https://news.ycombinator.com/item?id=7332391

Green Addresses, Dodged Bullet (extension of gox situation)
http://www.reddit.com/r/Bitcoin/comments/1zef5c/green_addresses_an_accidentally_dodged_bullet/

Blockchain.info’s Recieve API, sketchy
http://www.reddit.com/r/Bitcoin/comments/1zjqgg/dangers_of_using_blockchaininfo_receive_api_they/
http://www.reddit.com/r/Bitcoin/comments/1znnmr/warning_something_wrong_with_blockchaininfo_wallet/

Zero KNowledge Contingent Payment (Hash locked transactions, we’ve gone over this before but the wiki page got a nice update)
https://en.bitcoin.it/wiki/Zero_Knowledge_Contingent_Payment

Weekly Hashrate Contributor and Network Statistics
http://organofcorti.blogspot.de/2014/03/march-2nd-2014-weekly-hashrate.html

0.9.0rc2
https://bitcointalk.org/index.php?topic=495683.0

Issues/Pull Requests
https://github.com/bitcoin/bitcoin/pull/3845
https://github.com/bitcoin/bitcoin/pull/3843
https://github.com/bitcoin/bitcoin/issues/3816
https://github.com/bitcoin/bitcoin/issues/3810
https://github.com/bitcoin/bitcoin/issues/3794
https://github.com/bitcoin/bitcoin/pull/3764
https://bitcoin.stackexchange.com/questions/22716/bitcoind-sendfrom-round-amount-error / https://bitcoin.stackexchange.com/users/147/wumpus
https://github.com/bitcoin/bitcoin/pull/3753

GnuTLS Bug
http://article.gmane.org/gmane.comp.encryption.gpg.gnutls.devel/7361
http://arstechnica.com/security/2014/03/critical-crypto-bug-leaves-linux-hundreds-of-apps-open-to-eavesdropping/

Poloniex Hacked
http://www.coindesk.com/poloniex-loses-12-3-bitcoins-latest-bitcoin-exchange-hack/

Flexcoin Hacked
http://feeds.arstechnica.com/~r/arstechnica/technology-lab/~3/gsiNcAI09qk/

Stealing Bitcoin (don’t use brainwallets with low entropy!)
http://www.palkeo.com/code/stealing-bitcoin.html

BIP 0038 Cracker (i haven’t looked at code, check before using!)
https://github.com/cscott/bip38-cracker
https://github.com/notespace/bip38-cracker

Address/transaction Visualizer (old)
https://github.com/thallium205/BitcoinVisualizer

Blockchain Parser
https://code.google.com/p/blockchain/

Extract all transactions into an ASCII comma seperated txt file
http://codesuppository.blogspot.com/2014/03/how-to-extract-every-single-bitcoin.html

 Transaction Input Signatures in the Bitcoin Blockchain over time
http://codesuppository.blogspot.com/2014/03/transaction-input-signatures-in-bitcoin.html   

Find Reachable nodes in the network
http://getaddr.bitnodes.io/

bitcoinjs-lib (coming together nicely)
https://github.com/bitcoinjs/bitcoinjs-lib

Nimblecoin
http://nimblecoin.com/

Law firm using multi sig and smart contracts
http://empoweredlaw.com/

Verify QT signatures
https://github.com/ningzhang/bitcoin-message-verifier