SpellingCity is a fun new educational site that can help kids improve their spelling skills. It contains over 25,000 words and it is particularly good because the games and activities don¿t teach random words. You enter the words used in the games. Students may bring home spelling lists as homework and use this site to study those specific words. The games include hangman, word search and unscramble. Students can also be tested on their spelling lists. But they can first have a recorded voice teach them each word. Words can be spoken aloud and used in a sentence. In addition to being able to create your own spelling list, there are many sample lists to choose from as well.
Quiz Hub is subscription service for $40 per year. It is a K-12 online interactive learning center. There are some free sample quizes and activities for non-members to view. Members have access to hundreds of English language arts, geography, history, math, and science learning quizzes.
This was recommended to me as good diagnostic spelling tests (software)
The Sitton Sourcebook Series provides the scaffolding to create a skill-based, differentiated spelling curriculum. You, the teacher, are the practitioner. You select the skill-building activities and spelling assessments from a ready-to-go menu that reflects a range of ability levels. An abundance of blackline masters complement your efforts, creating just the right instructional balance to make every child a speller.
Rebecca Sitton's Appleseed, Jan. 2007 What's Current (PDF document)
This site is good for creating word search or a word scramble out of 10 spelling words that you type in and it does the rest. Might be a quick way to create a spelling activity.
This is a great article by Dr. Jan Wasowicz, one of the lead expert authors of the SPELL and SPELL-Links to Reading and Writing program. Dr. Wasowicz is also a frequent contributor to the SpellTalk listserv mentioned in one of the above links.