I am a new commer and I have know idea to earn BTC or other coin. In bitcointalk.org, how many ways to earn BTC or other coin. Experienced help is needed.

Useful links/posts
There are a few ways to earn Bitcoins, which differ in both skill and effort. A few things you can try:

• Offer your services in the Service-subboard
• Join a signature campaign (be sure to read the official forum rules before joining one)
• Sells goods (Physical or Digital)
• Trading altcoins (be sure to read A warning about Alt-Coins)
• Mining (see also How Bitcoin mining works)
• Invest (but don't be stupid)
• How to Buy Bitcoin?

We have also compiled a list of URL's that are useful to read or related to the items posted above:

• Overview of Bitcointalk Signature-Ad Campaigns
• [EDU] Faucet risks
• Are faucets a waste of time? (Answer: yes)
• The Bitcoins Earning Guide for poor countries
• List of sites / services for earning btc
• [TUTORIAL] Earn Bitcoins Here!
• Investor based games are dangerous (and almost always a scam)
• How to (seriously) earn Bitcoins for "dummies"
• The Complete Guide To Earning Free Bitcoin
• Cloudmining 101 (ponzi risk assessment)