Open source software that has been paying attention to recently:
Tapestry: component-oriented web presentation layer framework, http://jakarta.apache.org/tapestry/
SQLite: exquisite file-type database, support for SQL-92 (Part), views, triggers, custom SQL functions, cross-platform, www.sqlite.org
JXTA-C: jxta c language implementation, P2P platform, http://jxta-c.jxta.org/
Anlr: lexer & parser generator, which can output Java, C/C ++, C #, Python, etc.Code, Http://www.antlr.org/
Open-source projects are mostly foreign. To join their contact groups, it is necessary to create a foreign email box, because the domestic mailbox may not receive the email! The mailbox must support pop3/SMTP. Otherwise, it is inconvenient. However, foreign users are very familiar with mailbox delivery, and few support pop3/SMTP. I am currently using www.hotpop.com, liigo@hotpop.com, free, support pop3/SMTP, unfortunately not big.
My current browser is opera, featuring speed, single-window multi-page browsing, and integrated email sending and receiving/RSS reading, which is quite convenient. Only a few websites cannot parse it perfectly (such as online forums, csdn Forum ). In general, it is good. I always use it.