I collected the probably the largest list of many ways to earn extra money from home. Many of these jobs need innovation and need your desire to work. If you are big graduate and post gradate then also you ca do these jobs. Because job is job. No job is small and big. Their are many peoples who working in offices and also part time jobs in evening time. Most of them do small jobs. Like washing, tutor, cleanings etc.

1. Making Website: Internet is growing with fast rate and hence people will search more and more things in future. Making website is excellent way to earn money online. Once you setup your website then it require very little work, only need little promotion from you side. Slowly you website  will cash machine. If you make 10 website then probably you will decent enough. If you make massive website then earning from website has no limits. many website owners are hiring content writers to make content fresh and updated.
2. Making Blog: Making blog is different from making website. Content of blog is updated on regular basis. but website is like same content for long period. Most of the blogs use archives to store things. Problogger is guru of blogging. Thousands of blogs launched every day. And many peoples earning huge money from their blogs. And many of them not. People say writing Quality content is most important earning from blogs. Blogs is not instant cash machine Most blog starts earning after few months. And require very hard work like any offline job.
3. Writing reviews: Writing reviews is very easy way to make extra money. Many websites pay you direct cash for writing review. but you need to write good reviews and should be approved these websites. reviewstream offer some money for writing reviews. Right they are giving $2 per approved reviews. People claims to earn $10 easily from this websites.
4. Writing freelance: Free launching is hot job. Many free lancer earn full time income from their writing skills. People make money by writing for others. many free lancer do bulk writing for their projects. Few companies also offer compensation for free lancers.
5. Sell products: Selling products if one click away if you write one hub on hub pages. You can add Ebay and Amazon ads. If people buy any thing you will get commission from these affiliates. Also, you can add these products on your websites.
6. Sell products on Ebay: Millions of people buy and sell products on ebay. If you sell product on ebay you shall get good offer.
7. Cleaning jobs: Garage cleaning, Swimming pool cleaning and Dog washing are good ways to get some money in no time.
8. Rent : You can do small business of renting products. Like you can rent comics, games dvd, these things shall make you good money if you run this business successfully.
9. Do home based business: If you do home based business then you probably earn good money. You can do many types of home based business from planting plants to collecting scrap metals. Making bottle caps to feeding pets or pet foods. These are good examples home based business. This need innovation from you side. Their are many money makineg ideas for home based business.
10. Baby sitting: If both parents go for jobs then they hire baby sitters. because need somone to take care of their babies. This jobs gives you small money.
11. Buy and sell: You can buy things from other places. and sell them for profits. This is good way to make money. One of my friend buy small things from old shops and sell those things on the Ebay. Some times he sold things for 10 times more price. This is great way to earn money. Even few people collect scrap metal from garbage these are vendors who give money for peoples who buy scrap metal and products from these peoples. and sell those metals in these garbage and earn huge profits.
12. Tutor: Tutor is all time great way to earn money. This is very easy because you can teach small kids  to this require not much skills and effort from your side.
13. Sell ebooks: This is good way to earn money online. You can probably earn nice income from selling income: Their is one $7 ebook who made thousands of dollars in few months. So, earning good money is possible from ebooks. But need selling skills and promotion.
14. Dog walking: You can walk with dog to earn money. Because many peoples dont have time to walk with dog. So, they need person so, that their dog get some exercise daily.
15. Make bake and sell: House wife can make bake and sell things from home. This good way to earn money.
16. Food center: House wife can make food for bachelors and make good money. Most of food center sell food in cheap price. And bachelor eat this food because they are getting taste of real home made food. Which is better then eating food on hotels.
17. Dance classes: This is for the people who have good dance skills. Because small kids like to learn dance and music.
18. Beauty parlor: You can open beauty parlor of men parlor after taking training of few months. many house wife are running beauty parlor successfully after completing courses and basic training.
19. Taking care of seniors: Seniors need care when they are very old. You can earn small money for this.
20. Making money by working hard: This is one great method to earn money. Working hard is good way. If you double you input then probably your earning will be more then double.

These are various ways to earn extra money.