Twitter Feed with caching

Feed.ascx

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using LinqToTwitter;
using System.Text;
using System.Text.RegularExpressions;

using System.Runtime.Caching;

using umbraco.DataLayer;

public partial class usercontrols_Feed : System.Web.UI.UserControl
{
    public int Count { get; set; }
    public string ProfileName { get; set; }

    protected void Page_Load(object sender, EventArgs e)
    {
        MemoryCache cache = MemoryCache.Default;
        List<Tweet> tweets = (List<Tweet>)cache["TwitterFeed"];
        if (tweets == null)
        {
            try
            {
                tweets = new List<Tweet>();

                var auth = new SingleUserAuthorizer
                {
                    Credentials = new InMemoryCredentials
                    {
                        ConsumerKey = "",
                        ConsumerSecret = "",
                        OAuthToken = "",
                        AccessToken = ""
                    }
                };

                using (var twitterContext = new TwitterContext(auth))
                {
                    var statusTweets =
                        from tweet in twitterContext.Status
                        where tweet.Type == StatusType.User
                            && tweet.Count == 25
                            && tweet.ScreenName == ProfileName
                        select tweet;

                    foreach (var status in statusTweets)
                    {
                        tweets.Add(new Tweet
                        {
                            //Id = Convert.ToInt32(status.Page),
                            Text = status.Text.Replace("\n", "").Replace("\r", ""),
                            CreateDate = status.CreatedAt,
                            Timestamp = DateTime.Now,
                            TweetId = status.StatusID
                        });
                    }
                }

                //-- Add to cache - for 1 hour
                cache.Add("TwitterFeed", tweets, new CacheItemPolicy() { AbsoluteExpiration = DateTime.Now.AddHours(1) });
            }
            catch (Exception ex)
            {
                // todo: log error
            }
        }

        rptTweets.DataSource = tweets.Take(Count).ToList();
        rptTweets.DataBind();
    }

    public string ParseTweet(string rawTweet)
    {
        Regex link = new Regex(@"http(s)?://([\w+?\.\w+])+([a-zA-Z0-9\~\!\@\#\$\%\^\&amp;\*\(\)_\-\=\+\\\/\?\.\:\;\'\,]*)?");
        Regex screenName = new Regex(@"@\w+");
        Regex hashTag = new Regex(@"#\w+");

        string formattedTweet = link.Replace(rawTweet, delegate(Match m)
        {
            string val = m.Value;
            return "<a href='" + val + "' target='_blank'>" + val + "</a>";
        });

        formattedTweet = screenName.Replace(formattedTweet, delegate(Match m)
        {
            string val = m.Value.Trim('@');
            return string.Format("@<a href='https://twitter.com/{0}' target='_blank'>{1}</a>", val, val);
        });

        formattedTweet = hashTag.Replace(formattedTweet, delegate(Match m)
        {
            string val = m.Value;
            //return string.Format("<a href='http://twitter.com/#search?q=%23{0}&src=hash'>{1}</a>", val, val);
            return string.Format("<a href='https://twitter.com/search?q=%23{0}&src=hash' target='_blank'>{1}</a>", val.Replace("#", ""), val);
        });

        return formattedTweet;
    }
}

Tweet.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;

/// <summary>
/// Summary description for Tweet
/// </summary>
public class Tweet
{
    public int Id { get; set; }
    public string TweetId { get; set; }
    public string Text { get; set; }
    public DateTime CreateDate { get; set; }
    public DateTime Timestamp { get; set; }

	public Tweet()
	{
		//
		// TODO: Add constructor logic here
		//
	}
}