HandWiki is the #3 world's largest wiki in terms page counts. It has a larger number of articles than in English Wikipedia for more than 10,000 categories dedicated to science and technology. However, the current operational budget of HandWiki is only 1000$/year. To be competitive with Wikipedia, which has a budget of more than 120,000,000$ /year and financial support from the corporate world, we kindly ask you for donations. This will ensure continuity and further development of this project. In addition, we are looking for sponsors and investors.

## HandWiki Membership

HandWiki registration is free for researches with verifiable professional credentials, i.e. if the authorship in peer-review journals, books etc. can be established using the ORCiD iD. If you do not have the ORCiD account, but you think you are sufficiently qualified to edit HandWiki, you may use the verification form. Your credentials will be reviewed and you will receive a verification code. However, this may take some time.

If you are not a scholar, consider to become a HandWiki member. During the registration we kindly ask you to donate small amount of money. Your contribution will support the administrators who will activate your account, and who will monitor your first steps as a HandWiki author. It is also used to improve the speed of the HandWiki web site, to support administrative cost of its content and will help fight spam.

If you cannot register with ORCiD but still want to contribute to HandWiki, use HandWiki sandbox to create test articles.

## Donating to HandWiki

If you like this project, consider donating to HandWiki. These funds will be used to improve the speed of HandWiki web site and to support administrative cost of its content. The names of the people who financially contributed to HandWiki can be indicated on a special page.

Sponsoring the HandWiki project is a viable option for covering its operational cost. During the period of time when a sponsor contributes to HandWiki's maintenance cost, we will include sponsor's logo with the URL link to the sponsor's web site in the footer of 1,047,022 articles of HandWiki. Contact us for more inforamtion.

## Invited Posts or Blogs

Invited blogs can be posted to the main page of HandWiki. Contact us for the instructions.

HandWiki allows adding non-intrusive image Ads at the ends of articles. Such Ads can target the audience for thousands of articles in specific HandWiki topics, such as Software, Physics, Biology, Chemistry, Engineering etc. (16 topics).

• Should be prepared in the PNG/JPEG format;
• No animated images inside the icon;
• The standard size of the icon is 120x90px;
• The white (or transparent) background for the image is preferred.

The image should be prepared by the advertising side (or by the HandWiki team in exceptional cases). Such Ads will go directly to the HandWiki support, therefore, one can use the word “Supported by”. Examples of such Ads images are shown at the bottom of this page. Here is an image template which can be re-used for your purpose.