Much of the material on the web, and especially material in licensed library databases, is already protected by copyright and has restricted uses. Posting an "excessive" portion of a resource; such as an entire journal article abstract or a complete journal article is prohibited. For more information on the Acceptable Use of Electronic Resources, please see our Policy. The Penn Library reserves the right to remove posts from Penntags. If we remove one of your posts, we will attempt to notify you.

The content you create in a post is yours and when you post to PennTags all rights are reserved for you as the copyright holder. If you would like to be less restrictive and allow people to build upon your work then you may select a license from the creative commons licenses described below link to licenses. Assign your license at the time of posting, or later, by editing the post.
The University of Pennsylvania Library reserves the right to display your post in Library materials, and on library websites. Please note that material you find on the web is covered by copyright law.

The license assigned to a post applies only to the annotation portion of the post, and only to the annotation in so far as it is an original work created by the owner of the post. The license does not apply to the PennTags, nor to content that is simply copied from other websites. The license assigned to a project applies to the assembly and arrangement of posts. Copyright for the posts in a project is always held by the creator of the posts.

Available licenses:

The following creative commons licenses are available for PennTags users to apply to posts and projects:

• Attribution Non-commercial No Derivatives (by-nc-nd)
  This license is the most restrictive of our six main licenses, allowing redistribution. This license is often called the "free advertising" license because it allows others to download your works and share them with others as long as they mention you and link back to you, but they can't change them in any way or use them commercially.
  Read the Commons Deed | View Legal Code

• Attribution Non-commercial Share Alike (by-nc-sa)
  This license lets others remix, tweak, and build upon your work non-commercially, as long as they credit you and license their new creations under the identical terms. Others can download and redistribute your work just like the by-nc-nd license, but they can also translate, make remixes, and produce new stories based on your work. All new work based on yours will carry the same license, so any derivatives will also be non-commercial in nature.
  Read the Commons Deed | View Legal Code

• Attribution Non-commercial (by-nc)
  This license lets others remix, tweak, and build upon your work non-commercially, and although their new works must also acknowledge you and be non-commercial, they don't have to license their derivative works on the same terms.
  Read the Commons Deed | View Legal Code

• Attribution No Derivatives (by-nd)
  This license allows for redistribution, commercial and non-commercial, as long as it is passed along unchanged and in whole, with credit to you.
  Read the Commons Deed | View Legal Code

• Attribution Share Alike (by-sa)
  This license lets others remix, tweak, and build upon your work even for commercial reasons, as long as they credit you and license their new creations under the identical terms. This license is often compared to open source software licenses. All new works based on yours will carry the same license, so any derivatives will also allow commercial use.
  Read the Commons Deed | View Legal Code

• Attribution (by)
  This license lets others distribute, remix, tweak, and build upon your work, even commercially, as long as they credit you for the original creation. This is the most accommodating of licenses offered, in terms of what others can do with your works licensed under Attribution.
  Read the Commons Deed | View Legal Code