Bitcoin and Ethereum are the most famous crypto currencies that people are aware of,but the world of crypto is not just limited to just the two of these. As of 1/28 there 1494 crypto coins are listed out in coin market cap(https://coinmarketcap.com/all/views/all/).
In addition to the ones that are available, new coins are published every other day to the various exchanges in the world.
In order to attract new users, firms/entities that create a ICO follow different strategies. One of the common strategy used is doing an bounty program.
In a bounty program, people perform small set of tasks in return for coins. Example of simple tasks would include :
- Following the offering in twitter.
- Retweeting pinned tweets.
- Referrals
- Join Telegram group and be active in it.
Bounty enthusiast can find information about bounty campaigns from various bitcoin forums like bitcointalk, twitter,reddit and other public forum.
Once an enthusiast identifies a program, he can take part in it by following the instructions that would be provided in the offerings home page or in the bit coin forum.
A note of caution: Not all coins/ico's are genuine. Please do a through study before investing or participating in any offerings.