There are many ways to locate Nebraska cemetery records on the Internet ... everything from Google to the USGenWeb pages to the tombstone project of the Nebraska State Genealogical Society. Here is just a sampling of what you can find on Internet.
Wyuka Cemetery at 3600 O Street in Lincoln was established by an act of the Nebraska Legislature in 1869. The original three acres east of the city is now within the city of Lincoln and no longer a "rural cemetery." The cemetery was patterned after Mount Auburn Cemetery in Boston, Massachusetts. Wyuka Cemetery now encompasses over 140 acres between O Street and north to Vine Street in Lincoln. They have an excellent searchable database for burial records.
Forest Lawn Cemetery at 7909 Mormon Bridge Road in Omaha has a searchable database which is a work in progress. They have almost 90,000 records on file. The Forest Lawn Cemetery Association was organized under the laws of Nebraska on 13 May 1885.
The cemetery at Kearney is located at 4440 Avenue I. They have a searchable database that is easy to access. They also have a detailed map for locating burial sites.
The North Platte Cemetery, located on West Rodeo Road, was established in 1872. Their record database is continually updated.
In Buffalo County, the Ravenna cemeteries of Highland, Mt. Calvary and Highland Park have online databases.
There are more databases of Nebraska cemeteries online. Just start exploring!