Create a YouTube playlist containing all the uploads of a given user

var credentials = new GDataCredentials(userName, password);
var service = new YouTubeService(applicationName, developerKey) {Credentials = credentials};
var entry = new AtomEntry {Title = {Text = playlistName}};
entry = service.Insert(new Uri(YouTubeQuery.CreatePlaylistsUri(null)), entry);
var id = ((XmlExtension) entry.FindExtension("playlistId", YouTubeNameTable.NSYouTube)).Node.InnerText;
var batchUri = new Uri(string.Format("https://gdata.youtube.com/feeds/api/playlists/{0}/batch", id));
var query = new YouTubeQuery(YouTubeQuery.CreateUserUri(sourceUser)) {StartIndex = 1};
AtomFeed feed;
do
{
    feed = service.Query(query);
    service.Batch(feed, batchUri);
    query.StartIndex += feed.Entries.Count;
} while (query.StartIndex < feed.TotalResults);

Google Data API .NET client library

List the users of a TFS project associated with a local workspace path

var workspace = Workstation.Current.GetLocalWorkspaceInfo(path);
var tfs = new TfsTeamProjectCollection(workspace.ServerUri);
var gss = tfs.GetService<IGroupSecurityService>();
var grp = gss.ReadIdentity(SearchFactor.EveryoneApplicationGroup, null, QueryMembership.Expanded);
var names = gss.ReadIdentities(SearchFactor.Sid, grp.Members, QueryMembership.None)
    .Where(identity => identity.Type == IdentityType.WindowsUser)
    .Select(identity => string.Format(@"{0}\{1}", identity.Domain, identity.AccountName))
    .ToArray();

Quartz scheduler job that re-triggers itself on completion

public class RetriggerJob : IInterruptableJob
{
    private bool _interrupted;
    public void Execute(IJobExecutionContext context)
    {
        Thread.Sleep(1000);
        if (_interrupted)
        {
            return;
        }
        context.Scheduler.TriggerJob(context.JobDetail.Key);
        if (_interrupted)
        {
            context.Scheduler.Interrupt(context.JobDetail.Key);
        }
    }
    public void Interrupt()
    {
        _interrupted = true;
    }
}

Quartz.NET